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Available in 28 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-28" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">28 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ace mw-list-item"><a href="https://ace.wikipedia.org/wiki/Portal:Sistem_mata_uroe" title="Portal:Sistem mata uroe – Acehnese" lang="ace" hreflang="ace" data-title="Portal:Sistem mata uroe" data-language-autonym="Acèh" data-language-local-name="Acehnese" class="interlanguage-link-target"><span>Acèh</span></a></li><li class="interlanguage-link interwiki-ar badge-Q17580674 badge-featuredportal mw-list-item" title="featured portal badge"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D9%88%D8%A7%D8%A8%D8%A9:%D8%A7%D9%84%D9%85%D8%AC%D9%85%D9%88%D8%B9%D8%A9_%D8%A7%D9%84%D8%B4%D9%85%D8%B3%D9%8A%D8%A9" title="بوابة:المجموعة الشمسية – Arabic" lang="ar" hreflang="ar" data-title="بوابة:المجموعة الشمسية" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Portal:G%C3%BCn%C9%99%C5%9F_sistemi" title="Portal:Günəş sistemi – Azerbaijani" lang="az" hreflang="az" data-title="Portal:Günəş sistemi" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Portal:Sistema_solar" title="Portal:Sistema solar – Catalan" lang="ca" hreflang="ca" data-title="Portal:Sistema solar" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Port%C3%A1l:Slune%C4%8Dn%C3%AD_soustava" title="Portál:Sluneční soustava – Czech" lang="cs" hreflang="cs" data-title="Portál:Sluneční soustava" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CF%8D%CE%BB%CE%B7:%CE%97%CE%BB%CE%B9%CE%B1%CE%BA%CF%8C_%CE%A3%CF%8D%CF%83%CF%84%CE%B7%CE%BC%CE%B1" title="Πύλη:Ηλιακό Σύστημα – Greek" lang="el" hreflang="el" data-title="Πύλη:Ηλιακό Σύστημα" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Portal:Sistema_solar" title="Portal:Sistema solar – Spanish" lang="es" hreflang="es" data-title="Portal:Sistema solar" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Atari:Eguzki-sistema" title="Atari:Eguzki-sistema – Basque" lang="eu" hreflang="eu" data-title="Atari:Eguzki-sistema" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa badge-Q17580674 badge-featuredportal mw-list-item" title="featured portal badge"><a href="https://fa.wikipedia.org/wiki/%D8%AF%D8%B1%DA%AF%D8%A7%D9%87:%D9%85%D9%86%D8%B8%D9%88%D9%85%D9%87_%D8%B4%D9%85%D8%B3%DB%8C" title="درگاه:منظومه شمسی – Persian" lang="fa" hreflang="fa" data-title="درگاه:منظومه شمسی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Portail:Syst%C3%A8me_solaire" title="Portail:Système solaire – French" lang="fr" hreflang="fr" data-title="Portail:Système solaire" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Portal:Sistema_Solar" title="Portal:Sistema Solar – Galician" lang="gl" hreflang="gl" data-title="Portal:Sistema Solar" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%8F%AC%ED%84%B8:%ED%83%9C%EC%96%91%EA%B3%84" title="포털:태양계 – Korean" lang="ko" hreflang="ko" data-title="포털:태양계" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Portal:Tata_Surya" title="Portal:Tata Surya – Indonesian" lang="id" hreflang="id" data-title="Portal:Tata Surya" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Portale:Sistema_solare" title="Portale:Sistema solare – Italian" lang="it" hreflang="it" data-title="Portale:Sistema solare" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9E%E1%83%9D%E1%83%A0%E1%83%A2%E1%83%90%E1%83%9A%E1%83%98:%E1%83%9B%E1%83%96%E1%83%98%E1%83%A1_%E1%83%A1%E1%83%98%E1%83%A1%E1%83%A2%E1%83%94%E1%83%9B%E1%83%90" title="პორტალი:მზის სისტემა – Georgian" lang="ka" hreflang="ka" data-title="პორტალი:მზის სისტემა" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Port%C4%81ls:Saules_sist%C4%93ma" title="Portāls:Saules sistēma – Latvian" lang="lv" hreflang="lv" data-title="Portāls:Saules sistēma" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%A6%E0%A4%BE%E0%A4%B2%E0%A4%A8:%E0%A4%B8%E0%A5%82%E0%A4%B0%E0%A5%8D%E0%A4%AF%E0%A4%AE%E0%A4%BE%E0%A4%B2%E0%A4%BE" title="दालन:सूर्यमाला – Marathi" lang="mr" hreflang="mr" data-title="दालन:सूर्यमाला" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%A8%D9%88%D8%A7%D8%A8%D8%A9:%D8%A7%D9%84%D9%85%D8%AC%D9%85%D9%88%D8%B9%D8%A9_%D8%A7%D9%84%D8%B4%D9%85%D8%B3%D9%8A%D8%A9" title="بوابة:المجموعة الشمسية – Egyptian Arabic" lang="arz" hreflang="arz" data-title="بوابة:المجموعة الشمسية" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Portal:Sistem_Suria" title="Portal:Sistem Suria – Malay" lang="ms" hreflang="ms" data-title="Portal:Sistem Suria" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Portal:Sistema_Solar" title="Portal:Sistema Solar – Portuguese" lang="pt" hreflang="pt" data-title="Portal:Sistema Solar" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Portal:Sistemul_solar" title="Portal:Sistemul solar – Romanian" lang="ro" hreflang="ro" data-title="Portal:Sistemul solar" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%AF%E0%B7%8A%E0%B7%80%E0%B7%8F%E0%B6%BB%E0%B6%BA:%E0%B7%83%E0%B7%9E%E0%B6%BB%E0%B6%9C%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%84_%E0%B6%B8%E0%B6%AB%E0%B7%8A%E0%B6%A9%E0%B6%BD%E0%B6%BA" title="ද්වාරය:සෞරග්‍රහ මණ්ඩලය – Sinhala" lang="si" hreflang="si" data-title="ද්වාරය:සෞරග්‍රහ මණ්ඩලය" data-language-autonym="සිංහල" data-language-local-name="Sinhala" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Port%C3%A1l:Slne%C4%8Dn%C3%A1_s%C3%BAstava" title="Portál:Slnečná sústava – Slovak" lang="sk" hreflang="sk" data-title="Portál:Slnečná sústava" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Portal:Bahda_Qoraxdu_Midaysay" title="Portal:Bahda Qoraxdu Midaysay – Somali" lang="so" hreflang="so" data-title="Portal:Bahda Qoraxdu Midaysay" data-language-autonym="Soomaaliga" data-language-local-name="Somali" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%AF%DB%95%D8%B1%D9%88%D8%A7%D8%B2%DB%95:%DA%A9%DB%86%D9%85%DB%95%DA%B5%DB%95%DB%8C_%D8%AE%DB%86%D8%B1" title="دەروازە:کۆمەڵەی خۆر – Central Kurdish" lang="ckb" hreflang="ckb" data-title="دەروازە:کۆمەڵەی خۆر" data-language-autonym="کوردی" data-language-local-name="Central Kurdish" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AA%E0%B8%96%E0%B8%B2%E0%B8%99%E0%B8%B5%E0%B8%A2%E0%B9%88%E0%B8%AD%E0%B8%A2:%E0%B8%A3%E0%B8%B0%E0%B8%9A%E0%B8%9A%E0%B8%AA%E0%B8%B8%E0%B8%A3%E0%B8%B4%E0%B8%A2%E0%B8%B0" title="สถานีย่อย:ระบบสุริยะ – Thai" lang="th" hreflang="th" 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.portal-column-right-extra-narrow{float:inherit;width:inherit}}</style> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Wikipedia portal for content related to Solar System</div> <div style="font-size:85%;"><span class="anchor" id="portals-browsebar"></span><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul 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title="Wikipedia:Contents/Portals">Activities</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Culture_and_the_arts" title="Wikipedia:Contents/Portals">Culture</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Geography_and_places" title="Wikipedia:Contents/Portals">Geography</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Health_and_fitness" title="Wikipedia:Contents/Portals">Health</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#History_and_events" title="Wikipedia:Contents/Portals">History</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Mathematics_and_logic" title="Wikipedia:Contents/Portals">Mathematics</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Natural_and_physical_sciences" title="Wikipedia:Contents/Portals">Nature</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#People_and_self" title="Wikipedia:Contents/Portals">People</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Philosophy_and_thinking" title="Wikipedia:Contents/Portals">Philosophy</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Religion_and_belief_systems" title="Wikipedia:Contents/Portals">Religion</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Society_and_social_sciences" title="Wikipedia:Contents/Portals">Society</a></dd> <dd><a href="/wiki/Wikipedia:Contents/Portals#Technology_and_applied_sciences" title="Wikipedia:Contents/Portals">Technology</a></dd> <dd><a href="/wiki/Special:RandomInCategory/All_portals" title="Special:RandomInCategory/All portals">Random portal</a></dd></dl> </div></div> <div style="width:100%; background:#2F4F4F; border:4px solid #333366; border-style:ridge; font-size:95%; padding:10px; float:left;"> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="The_Solar_System_Portal" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em"><big>The Solar System Portal</big></h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Solar_System_true_color.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Solar_System_true_color.jpg/290px-Solar_System_true_color.jpg" decoding="async" width="290" height="163" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Solar_System_true_color.jpg/435px-Solar_System_true_color.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/19/Solar_System_true_color.jpg/580px-Solar_System_true_color.jpg 2x" data-file-width="3840" data-file-height="2160" /></a><figcaption>The <a href="/wiki/Sun" title="Sun">Sun</a> and planets of the Solar System <i>(distances not to scale)</i></figcaption></figure> <p>The <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b> is the <a href="/wiki/Gravitationally_bound" class="mw-redirect" title="Gravitationally bound">gravitationally bound</a> system of the <a href="/wiki/Sun" title="Sun">Sun</a> and the objects that <a href="/wiki/Orbit" title="Orbit">orbit</a> it. It <a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">formed about 4.6 billion years ago</a> when a dense region of a <a href="/wiki/Molecular_cloud" title="Molecular cloud">molecular cloud</a> collapsed, forming the Sun and a <a href="/wiki/Protoplanetary_disc" class="mw-redirect" title="Protoplanetary disc">protoplanetary disc</a>. The Sun is a typical star that maintains a <a href="/wiki/Hydrostatic_equilibrium" title="Hydrostatic equilibrium">balanced equilibrium</a> by the <a href="/wiki/Thermonuclear_fusion" class="mw-redirect" title="Thermonuclear fusion">fusion</a> of hydrogen into helium at its <a href="/wiki/Stellar_core" title="Stellar core">core</a>, releasing this energy from its outer <a href="/wiki/Photosphere" title="Photosphere">photosphere</a>. Astronomers <a href="/wiki/Stellar_classification" title="Stellar classification">classify</a> it as a <a href="/wiki/G-type_main-sequence_star" title="G-type main-sequence star">G-type main-sequence star</a>. </p><p>The largest objects that orbit the Sun are the eight <a href="/wiki/Planet" title="Planet">planets</a>. In order from the Sun, they are four <a href="/wiki/Terrestrial_planet" title="Terrestrial planet">terrestrial planets</a> (<a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a>, <a href="/wiki/Venus" title="Venus">Venus</a>, <a href="/wiki/Earth" title="Earth">Earth</a> and <a href="/wiki/Mars" title="Mars">Mars</a>); two <a href="/wiki/Gas_giant" title="Gas giant">gas giants</a> (<a href="/wiki/Jupiter" title="Jupiter">Jupiter</a> and <a href="/wiki/Saturn" title="Saturn">Saturn</a>); and two <a href="/wiki/Ice_giant" title="Ice giant">ice giants</a> (<a href="/wiki/Uranus" title="Uranus">Uranus</a> and <a href="/wiki/Neptune" title="Neptune">Neptune</a>). All terrestrial planets have solid surfaces. Inversely, all <a href="/wiki/Giant_planets" class="mw-redirect" title="Giant planets">giant planets</a> do not have a definite surface, as they are mainly composed of gases and liquids. Over 99.86% of the Solar System's mass is in the Sun and nearly 90% of the remaining mass is in Jupiter and Saturn. </p><p>There is a strong consensus among astronomers that the Solar System has at least nine <a href="/wiki/Dwarf_planet" title="Dwarf planet">dwarf planets</a>: <a href="/wiki/Ceres_(dwarf_planet)" title="Ceres (dwarf planet)">Ceres</a>, <a href="/wiki/Orcus_(dwarf_planet)" title="Orcus (dwarf planet)">Orcus</a>, <a href="/wiki/Pluto" title="Pluto">Pluto</a>, <a href="/wiki/Haumea" title="Haumea">Haumea</a>, <a href="/wiki/Quaoar" title="Quaoar">Quaoar</a>, <a href="/wiki/Makemake" title="Makemake">Makemake</a>, <a href="/wiki/Gonggong_(dwarf_planet)" title="Gonggong (dwarf planet)">Gonggong</a>, <a href="/wiki/Eris_(dwarf_planet)" title="Eris (dwarf planet)">Eris</a>, and <a href="/wiki/Sedna_(dwarf_planet)" title="Sedna (dwarf planet)">Sedna</a>. There are a vast number of <a href="/wiki/Small_Solar_System_body" title="Small Solar System body">small Solar System bodies</a>, such as <a href="/wiki/Asteroid" title="Asteroid">asteroids</a>, <a href="/wiki/Comet" title="Comet">comets</a>, <a href="/wiki/Centaur_(minor_planet)" class="mw-redirect" title="Centaur (minor planet)">centaurs</a>, <a href="/wiki/Meteoroid" title="Meteoroid">meteoroids</a>, and <a href="/wiki/Interplanetary_dust_cloud" title="Interplanetary dust cloud">interplanetary dust clouds</a>. Some of these bodies are in the <a href="/wiki/Asteroid_belt" title="Asteroid belt">asteroid belt</a> (between Mars's and Jupiter's orbit) and the <a href="/wiki/Kuiper_belt" title="Kuiper belt">Kuiper belt</a> (just outside Neptune's orbit). Six planets, seven dwarf planets, and other bodies have orbiting <a href="/wiki/Natural_satellite" title="Natural satellite">natural satellites</a>, which are commonly called 'moons'. </p><p>The Solar System is constantly flooded by the Sun's <a href="/wiki/Charged_particle" title="Charged particle">charged particles</a>, the <a href="/wiki/Solar_wind" title="Solar wind">solar wind</a>, forming the <a href="/wiki/Heliosphere" title="Heliosphere">heliosphere</a>. Around 75–90 <a href="/wiki/Astronomical_unit" title="Astronomical unit">astronomical units</a> from the Sun, the solar wind is halted, resulting in the <a href="/wiki/Heliopause_(astronomy)" class="mw-redirect" title="Heliopause (astronomy)">heliopause</a>. This is the boundary of the Solar System to <a href="/wiki/Interstellar_space" class="mw-redirect" title="Interstellar space">interstellar space</a>. The outermost region of the Solar System is the theorized <a href="/wiki/Oort_cloud" title="Oort cloud">Oort cloud</a>, the source for <a href="/wiki/Long-period_comet" class="mw-redirect" title="Long-period comet">long-period comets</a>, extending to a radius of <span class="nowrap"><span data-sort-value="7014299195741400000♠"></span>2,000–200,000 AU</span>. The closest star to the Solar System, <a href="/wiki/Proxima_Centauri" title="Proxima Centauri">Proxima Centauri</a>, is 4.25 light-years (269,000 AU) away. Both stars belong to the <a href="/wiki/Milky_Way" title="Milky Way">Milky Way</a> galaxy. (<b><a href="/wiki/Solar_System" title="Solar System">Full article...</a></b>) </p> <div class="noprint" style="margin:0.3em 0.2em 0.2em 0.3em; padding:0.3em 0.2em 0.2em 0.3em; text-align:right;"><b><a href="/wiki/Outline_of_the_Solar_System" title="Outline of the Solar System">Outline of the Solar System</a></b></div><div style="clear:both;" class=""></div></div> <div style="text-align:center; margin:0.25em auto 0.75em"><span class="noprint plainlinks purgelink"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Portal:Solar_System&action=purge"><span title="Purge this page"><style data-mw-deduplicate="TemplateStyles:r1239334494">@media screen{html.skin-theme-clientpref-night .mw-parser-output div:not(.notheme)>.tmp-color,html.skin-theme-clientpref-night .mw-parser-output p>.tmp-color,html.skin-theme-clientpref-night .mw-parser-output table:not(.notheme) .tmp-color{color:inherit!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output div:not(.notheme)>.tmp-color,html.skin-theme-clientpref-os .mw-parser-output p>.tmp-color,html.skin-theme-clientpref-os .mw-parser-output table:not(.notheme) .tmp-color{color:inherit!important}}</style><span class="tmp-color" style="color:lightblue"><b>Refresh with new selections below</b> (purge)</span></span></a></span></div> <style data-mw-deduplicate="TemplateStyles:r996214246">.mw-parser-output .flex-columns-container{clear:both;width:100%;display:flex;flex-wrap:wrap}.mw-parser-output .flex-columns-container>.flex-columns-column{float:left;width:50%;min-width:360px;padding:0 0.5em;box-sizing:border-box;flex:1;display:flex;flex-direction:column}@media screen and (max-width:393px){.mw-parser-output .flex-columns-container>.flex-columns-column{min-width:0}}.mw-parser-output .flex-columns-container>.flex-columns-column:first-child{padding-left:0}.mw-parser-output .flex-columns-container>.flex-columns-column:last-child{padding-right:0}@media screen and (max-width:720px){.mw-parser-output .flex-columns-container>.flex-columns-column{padding:0;width:100%}.mw-parser-output .flex-columns-container{display:block}}.mw-parser-output .flex-columns-container>.flex-columns-column>div{flex:1 0 auto}.mw-parser-output .flex-columns-container>.flex-columns-column>div.flex-columns-noflex{flex:0}</style><div class="flex-columns-container"><div class="flex-columns-column"><div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Selected_article_–_show_another" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em"><span id="Selected_article_.E2.80.93_show_another"></span>Selected article – <span class="noprint plainlinks purgelink"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Portal:Solar_System&action=purge"><span title="Purge this page"><small><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><span class="tmp-color" style="color:darkblue"><i>show another</i></span></small></span></a></span></h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <div id="mp-tfa-img" style="float: left; margin: 0.5em 0.9em 0.4em 0em;"> <div class="thumbinner mp-thumb" style="background: transparent; color: inherit; border: none; padding: 0; max-width: 119px;"> <span typeof="mw:File"><a href="/wiki/File:PIA01081-Color_Mosaic_and_Active_Volcanic_Plumes_on_Io.jpg" class="mw-file-description" title="Io, with two plumes erupting from its surface."><img alt="Io, with two plumes erupting from its surface." src="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/PIA01081-Color_Mosaic_and_Active_Volcanic_Plumes_on_Io.jpg/119px-PIA01081-Color_Mosaic_and_Active_Volcanic_Plumes_on_Io.jpg" decoding="async" width="119" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/55/PIA01081-Color_Mosaic_and_Active_Volcanic_Plumes_on_Io.jpg/179px-PIA01081-Color_Mosaic_and_Active_Volcanic_Plumes_on_Io.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/55/PIA01081-Color_Mosaic_and_Active_Volcanic_Plumes_on_Io.jpg/238px-PIA01081-Color_Mosaic_and_Active_Volcanic_Plumes_on_Io.jpg 2x" data-file-width="1401" data-file-height="1938" /></a></span><div class="thumbcaption" style="padding: 0.25em 0; word-wrap: break-word;">Io, with two plumes erupting from its surface.</div></div> </div><b><a href="/wiki/Volcanism_on_Io" title="Volcanism on Io">Volcanism on Io</a></b>, a moon of <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>, produces <a href="/wiki/Lava" title="Lava">lava</a> flows, <a href="/wiki/Volcano" title="Volcano">volcanic</a> pits, and plumes of <a href="/wiki/Sulfur" title="Sulfur">sulfur</a> and <a href="/wiki/Sulfur_dioxide" title="Sulfur dioxide">sulfur dioxide</a> hundreds of kilometres high. This volcanic activity was discovered in 1979 by <i><a href="/wiki/Voyager_1" title="Voyager 1">Voyager 1</a></i> <a href="/wiki/Imaging_science" class="mw-redirect" title="Imaging science">imaging scientists</a>. Observations of <a href="/wiki/Io_(moon)" title="Io (moon)">Io</a> by passing spacecraft and Earth-based astronomers have revealed more than 150 active volcanoes. Io's volcanism makes the satellite one of only four known volcanically active worlds in the solar system. First predicted shortly before the <i>Voyager 1</i> flyby, the heat source for Io's volcanism comes from <a href="/wiki/Tidal_acceleration#Tidal_heating" title="Tidal acceleration">tidal heating</a> produced by Io's forced <a href="/wiki/Orbital_eccentricity" title="Orbital eccentricity">orbital eccentricity</a>. Io's volcanism has led to the formation of hundreds of volcanic centres and extensive lava formations, making the moon the most volcanically active body in the solar system. Three different types of volcanic eruptions have been identified, differing in duration, intensity, <a href="/wiki/Effusive_eruption" title="Effusive eruption">lava effusion</a> rate, and whether the eruption occurs within a volcanic pit. Lava flows on Io, tens or hundreds of kilometres long, have primarily <a href="/wiki/Basalt" title="Basalt">basaltic</a> composition, similar to lavas seen on Earth at <a href="/wiki/Shield_volcano" title="Shield volcano">shield volcanoes</a> such as <a href="/wiki/K%C4%ABlauea" title="Kīlauea">Kīlauea</a> in <a href="/wiki/Hawaii" title="Hawaii">Hawaii</a>. As a result of the presence of significant quantities of sulfurous materials in Io's crust and on its surface, during some eruptions, sulfur, sulfur dioxide gas, and <a href="/wiki/Tephra" title="Tephra">pyroclastic material</a> are blown up to 500 kilometres (310 mi) into space, producing large, umbrella-shaped volcanic plumes. (<b><a href="/wiki/Volcanism_on_Io" title="Volcanism on Io">Full article...</a></b>) <div style="float: right;"><b><a href="/wiki/Portal:Solar_System/Selected_article" title="Portal:Solar System/Selected article">More selected articles</a></b></div> <div style="clear:both;" class=""></div></div> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Selected_picture" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">Selected picture</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <style data-mw-deduplicate="TemplateStyles:r1238452006">.mw-parser-output div.portalSlideshow-container>ul.gallery.mw-gallery-slideshow>li.gallerycarousel>div>div>div>span:nth-child(2){display:none}.mw-parser-output div.portalSlideshow-container>ul.gallery.mw-gallery-slideshow>li.gallerycarousel>div>div:nth-child(1){padding-top:0.3em;padding-bottom:0}.mw-parser-output div.portalSlideshow-container>ul.gallery.mw-gallery-slideshow>li:nth-child(n/**/+2){display:none}.mw-parser-output div.portalSlideshow-container .gallery .gallerybox,.mw-parser-output div.portalSlideshow-container .gallery .gallerybox div{width:100%!important;max-width:100%}.mw-parser-output .mw-gallery-slideshow-img-container>a[href="/wiki/File:Blank.png"]{display:none}.mw-parser-output .gallerytext{font-size:100%!important;text-align:left}</style><style data-mw-deduplicate="TemplateStyles:r1021884966">.mw-parser-output .randomSlideshow-container>.gallery.mw-gallery-slideshow>.gallerycarousel>div>div>div>span:nth-child(2){display:none}.mw-parser-output .randomSlideshow-container .randomSlideshow-sr-only{display:block;width:1px;height:1px;text-indent:-999px;overflow:hidden}.mw-parser-output .randomSlideshow-container ul.gallery:first-child label{display:inline-block!important;padding:0.2em 0.3em}.mw-parser-output .randomSlideshow-container ul.gallery:first-child label,.mw-parser-output .randomSlideshow-container ul.gallery:first-child input{vertical-align:middle}.mw-parser-output .randomSlideshow-container ul.gallery:first-child input{transform:scale(1.4)}.mw-parser-output .randomSlideshow-container ul.gallery:first-child label:last-child{display:none!important}.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox{display:block;margin:auto}.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox li,.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox div,.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox p{padding-top:0;padding-bottom:0;margin:0}.mw-parser-output .randomSlideshow-container ul.gallery.mw-gallery-slideshow:first-child{position:relative;left:50%;transform:translateX(-50%);display:inline-block;text-align:center;display:flex;flex-wrap:wrap;justify-content:center}.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox{order:99999;flex-shrink:0}.mw-parser-output .randomSlideshow-container ul.gallery:first-child label{flex:0 0}.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox{width:100%!important}.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox>div,.mw-parser-output .randomSlideshow-container ul.gallery:first-child .gallerybox>div>div{width:inherit!important;max-width:100%;text-align:center}.mw-parser-output .randomSlideshow-container .nomobile+ul label{display:none!important}</style><div class="randomSlideshow-container portalSlideshow-container" style="max-width:100%; margin:-4em auto;"><div class="nomobile"></div><ul class="gallery mw-gallery-slideshow switcher-container"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Comet_P1_McNaught02_-_23-01-07.jpg" class="mw-file-description" title="Image 1 Comet McNaught Photo credit: Fir0002 Comet C/2006 P1 (McNaught), as seen from Swifts Creek, Victoria, Australia. This non-periodic comet, the brightest in over 40 years, was discovered on August 7, 2006 by British-Australian astronomer Robert H. McNaught. It was first visible in the northern hemisphere, reaching perihelion on January 12, 2007 at a distance of 0.17 AU. More selected pictures"><img alt="Image 1 Comet McNaught Photo credit: Fir0002 Comet C/2006 P1 (McNaught), as seen from Swifts Creek, Victoria, Australia. This non-periodic comet, the brightest in over 40 years, was discovered on August 7, 2006 by British-Australian astronomer Robert H. McNaught. It was first visible in the northern hemisphere, reaching perihelion on January 12, 2007 at a distance of 0.17 AU. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Comet_P1_McNaught02_-_23-01-07.jpg/120px-Comet_P1_McNaught02_-_23-01-07.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Comet_P1_McNaught02_-_23-01-07.jpg/180px-Comet_P1_McNaught02_-_23-01-07.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Comet_P1_McNaught02_-_23-01-07.jpg/240px-Comet_P1_McNaught02_-_23-01-07.jpg 2x" data-file-width="1600" data-file-height="1067" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 1</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/C/2006_P1_(McNaught)" class="mw-redirect" title="C/2006 P1 (McNaught)">Comet McNaught</a></span></div><span style="font-size:85%;">Photo credit: <a href="/wiki/User:Fir0002" title="User:Fir0002">Fir0002</a></span></div><div style="margin:0.5em 0;">Comet <b><a href="/wiki/C/2006_P1" class="mw-redirect" title="C/2006 P1">C/2006 P1</a> (McNaught)</b>, as seen from <a href="/wiki/Swifts_Creek,_Victoria" class="mw-redirect" title="Swifts Creek, Victoria">Swifts Creek, Victoria</a>, <a href="/wiki/Australia" title="Australia">Australia</a>. This <a href="/wiki/List_of_non-periodic_comets" class="mw-redirect" title="List of non-periodic comets">non-periodic</a> <a href="/wiki/Comet" title="Comet">comet</a>, the brightest in over 40 years, was discovered on August 7, 2006 by British-Australian <a href="/wiki/Astronomer" title="Astronomer">astronomer</a> <a href="/wiki/Robert_H._McNaught" title="Robert H. McNaught">Robert H. McNaught</a>. It was first visible in the northern hemisphere, reaching <a href="/wiki/Perihelion" class="mw-redirect" title="Perihelion">perihelion</a> on January 12, 2007 at a distance of 0.17 <a href="/wiki/Astronomical_unit" title="Astronomical unit">AU</a>.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Magnificent_CME_Erupts_on_the_Sun_-_August_31.jpg" class="mw-file-description" title="Image 2 Solar flare Photo: Goddard Space Flight Center A solar flare, a sudden flash of brightness observed over the Sun's surface or the solar limb which is interpreted as a large energy release, recorded on August 31, 2012. Such flares are often, but not always, followed by a colossal coronal mass ejection; in this instance, the ejection traveled at over 900 miles (1,400 km) per second. More selected pictures"><img alt="Image 2 Solar flare Photo: Goddard Space Flight Center A solar flare, a sudden flash of brightness observed over the Sun's surface or the solar limb which is interpreted as a large energy release, recorded on August 31, 2012. Such flares are often, but not always, followed by a colossal coronal mass ejection; in this instance, the ejection traveled at over 900 miles (1,400 km) per second. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Magnificent_CME_Erupts_on_the_Sun_-_August_31.jpg/120px-Magnificent_CME_Erupts_on_the_Sun_-_August_31.jpg" decoding="async" width="120" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Magnificent_CME_Erupts_on_the_Sun_-_August_31.jpg/180px-Magnificent_CME_Erupts_on_the_Sun_-_August_31.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Magnificent_CME_Erupts_on_the_Sun_-_August_31.jpg/240px-Magnificent_CME_Erupts_on_the_Sun_-_August_31.jpg 2x" data-file-width="1920" data-file-height="1080" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 2</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Solar_flare" title="Solar flare">Solar flare</a></span></div><span style="font-size:85%;">Photo: <a href="/wiki/Goddard_Space_Flight_Center" title="Goddard Space Flight Center">Goddard Space Flight Center</a></span></div><div style="margin:0.5em 0;">A <b><a href="/wiki/Solar_flare" title="Solar flare">solar flare</a></b>, a sudden flash of brightness observed over the <a href="/wiki/Sun" title="Sun">Sun</a>'s surface or the solar limb which is interpreted as a large energy release, recorded on August 31, 2012. Such flares are often, but not always, followed by a colossal <a href="/wiki/Coronal_mass_ejection" title="Coronal mass ejection">coronal mass ejection</a>; in this instance, the ejection traveled at over 900 miles (1,400 km) per second.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lunar_libration_with_phase_Oct_2007_(continuous_loop).gif" class="mw-file-description" title="Image 3 Lunar phase Image: Tom Ruen An animation of the phases of the Moon. As the Moon revolves around the Earth, the Sun lights the Moon from a different side, creating the different phases. In the image, the Moon appears to get bigger as well as "wobble" slightly. Tidal locking synchronizes the Moon's rotation period on its axis to match its orbital period around the earth. These two periods nearly cancel each other out, except that the Moon's orbit is elliptical. This causes its orbital motion to speed up when closer to the Earth, and slow down when farther away, causing the Moon's apparent diameter to change, as well as the wobbling motion observed. More selected pictures"><img alt="Image 3 Lunar phase Image: Tom Ruen An animation of the phases of the Moon. As the Moon revolves around the Earth, the Sun lights the Moon from a different side, creating the different phases. In the image, the Moon appears to get bigger as well as "wobble" slightly. Tidal locking synchronizes the Moon's rotation period on its axis to match its orbital period around the earth. These two periods nearly cancel each other out, except that the Moon's orbit is elliptical. This causes its orbital motion to speed up when closer to the Earth, and slow down when farther away, causing the Moon's apparent diameter to change, as well as the wobbling motion observed. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Lunar_libration_with_phase_Oct_2007_%28continuous_loop%29.gif/120px-Lunar_libration_with_phase_Oct_2007_%28continuous_loop%29.gif" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Lunar_libration_with_phase_Oct_2007_%28continuous_loop%29.gif/179px-Lunar_libration_with_phase_Oct_2007_%28continuous_loop%29.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Lunar_libration_with_phase_Oct_2007_%28continuous_loop%29.gif/239px-Lunar_libration_with_phase_Oct_2007_%28continuous_loop%29.gif 2x" data-file-width="640" data-file-height="642" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 3</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Lunar_phase" title="Lunar phase">Lunar phase</a></span></div><span style="font-size:85%;">Image: <a href="/wiki/User:Tomruen" title="User:Tomruen">Tom Ruen</a></span></div><div style="margin:0.5em 0;">An <a href="/wiki/Animation" title="Animation">animation</a> of the <b><a href="/wiki/Lunar_phase" title="Lunar phase">phases of the Moon</a></b>. As the Moon revolves around the <a href="/wiki/Earth" title="Earth">Earth</a>, the <a href="/wiki/Sun" title="Sun">Sun</a> lights the Moon from a different side, creating the different phases. In the image, the Moon appears to get bigger as well as "<a href="/wiki/Libration" title="Libration">wobble</a>" slightly. <a href="/wiki/Tidal_locking" title="Tidal locking">Tidal locking</a> synchronizes the Moon's <a href="/wiki/Rotation_period" class="mw-redirect" title="Rotation period">rotation period</a> on its axis to match its <a href="/wiki/Orbital_period" title="Orbital period">orbital period</a> around the earth. These two periods nearly cancel each other out, except that the Moon's orbit is <a href="/wiki/Elliptic_orbit" title="Elliptic orbit">elliptical</a>. This causes its orbital motion to speed up when <a href="/wiki/Apsis" title="Apsis">closer</a> to the Earth, and slow down when farther away, causing the Moon's <a href="/wiki/Angular_diameter" title="Angular diameter">apparent diameter</a> to change, as well as the wobbling motion observed.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Io_highest_resolution_true_color.jpg" class="mw-file-description" title="Image 4 Io Photo: NASA A true-color image of Io, one of the moons of Jupiter, taken by the Galileo spacecraft. The dark spot just left of the center is the erupting volcano Prometheus. The whitish plains on either side of it are coated with volcanically deposited sulfur dioxide frost, whereas the yellower regions contain a higher proportion of sulfur. More selected pictures"><img alt="Image 4 Io Photo: NASA A true-color image of Io, one of the moons of Jupiter, taken by the Galileo spacecraft. The dark spot just left of the center is the erupting volcano Prometheus. The whitish plains on either side of it are coated with volcanically deposited sulfur dioxide frost, whereas the yellower regions contain a higher proportion of sulfur. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Io_highest_resolution_true_color.jpg/120px-Io_highest_resolution_true_color.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Io_highest_resolution_true_color.jpg/180px-Io_highest_resolution_true_color.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Io_highest_resolution_true_color.jpg/240px-Io_highest_resolution_true_color.jpg 2x" data-file-width="3196" data-file-height="3196" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 4</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Io" class="mw-disambig" title="Io">Io</a></span></div><span style="font-size:85%;">Photo: <a href="/wiki/NASA" title="NASA">NASA</a></span></div><div style="margin:0.5em 0;">A true-color image of <b><a href="/wiki/Io_(moon)" title="Io (moon)">Io</a></b>, one of the moons of <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>, taken by the <i><a href="/wiki/Galileo_(spacecraft)" title="Galileo (spacecraft)">Galileo</a></i> spacecraft. The dark spot just left of the center is the erupting volcano <a href="/wiki/Prometheus_(volcano)" title="Prometheus (volcano)">Prometheus</a>. The whitish plains on either side of it are coated with volcanically deposited <a href="/wiki/Sulfur_dioxide" title="Sulfur dioxide">sulfur dioxide</a> frost, whereas the yellower regions contain a higher proportion of <a href="/wiki/Sulfur" title="Sulfur">sulfur</a>.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:PIA21465_-_North_Polar_Layers.jpg" class="mw-file-description" title="Image 5 Climate of Mars Photograph credit: NASA / JPL–Caltech / University of Arizona Although Mars is smaller than the Earth and 50 percent farther from the Sun, its climate has important similarities with the Earth, such as the presence of polar ice caps, seasonal changes and observable weather patterns. This image shows layered deposits in Planum Boreum, in the north polar region of Mars, which formed from a 3-kilometre-thick (2 mi) stack of dusty water-ice layers about 1,000 km (600 mi) across. The layers record information about the climate of the planet stretching back several million years. Erosion has created scarps and troughs that expose the layering. The tan-colored layers are the dusty water ice of the polar layered deposits, however a section of bluish layers is visible below them. These bluish layers contain sand-sized rock fragments that likely formed a large polar dunefield before the overlying dusty ice was deposited. This photograph, depicting an area approximately 1.3 km (0.8 mi) across, was captured by the HiRISE camera on board NASA's Mars Reconnaissance Orbiter. More selected pictures"><img alt="Image 5 Climate of Mars Photograph credit: NASA / JPL–Caltech / University of Arizona Although Mars is smaller than the Earth and 50 percent farther from the Sun, its climate has important similarities with the Earth, such as the presence of polar ice caps, seasonal changes and observable weather patterns. This image shows layered deposits in Planum Boreum, in the north polar region of Mars, which formed from a 3-kilometre-thick (2 mi) stack of dusty water-ice layers about 1,000 km (600 mi) across. The layers record information about the climate of the planet stretching back several million years. Erosion has created scarps and troughs that expose the layering. The tan-colored layers are the dusty water ice of the polar layered deposits, however a section of bluish layers is visible below them. These bluish layers contain sand-sized rock fragments that likely formed a large polar dunefield before the overlying dusty ice was deposited. This photograph, depicting an area approximately 1.3 km (0.8 mi) across, was captured by the HiRISE camera on board NASA's Mars Reconnaissance Orbiter. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/PIA21465_-_North_Polar_Layers.jpg/120px-PIA21465_-_North_Polar_Layers.jpg" decoding="async" width="120" height="75" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/PIA21465_-_North_Polar_Layers.jpg/180px-PIA21465_-_North_Polar_Layers.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/00/PIA21465_-_North_Polar_Layers.jpg/240px-PIA21465_-_North_Polar_Layers.jpg 2x" data-file-width="2880" data-file-height="1800" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 5</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Climate_of_Mars" title="Climate of Mars">Climate of Mars</a></span></div><span style="font-size:85%;">Photograph credit: <a href="/wiki/NASA" title="NASA">NASA</a> / <a href="/wiki/Jet_Propulsion_Laboratory" title="Jet Propulsion Laboratory">JPL</a>–<a href="/wiki/California_Institute_of_Technology" title="California Institute of Technology">Caltech</a> / <a href="/wiki/University_of_Arizona" title="University of Arizona">University of Arizona</a></span></div><div style="margin:0.5em 0;">Although <a href="/wiki/Mars" title="Mars">Mars</a> is smaller than the Earth and 50 percent farther from the Sun, <b><a href="/wiki/Climate_of_Mars" title="Climate of Mars">its climate</a></b> has important similarities with the Earth, such as the presence of <a href="/wiki/Polar_ice_cap" title="Polar ice cap">polar ice caps</a>, seasonal changes and observable weather patterns. This image shows layered deposits in <a href="/wiki/Planum_Boreum" title="Planum Boreum">Planum Boreum</a>, in the north polar region of Mars, which formed from a 3-kilometre-thick (2 mi) stack of dusty water-ice layers about 1,000 km (600 mi) across. The layers record information about the climate of the planet stretching back several million years. Erosion has created scarps and troughs that expose the layering. The tan-colored layers are the dusty water ice of the polar layered deposits, however a section of bluish layers is visible below them. These bluish layers contain sand-sized rock fragments that likely formed a large polar dunefield before the overlying dusty ice was deposited. This photograph, depicting an area approximately 1.3 km (0.8 mi) across, was captured by the <a href="/wiki/HiRISE" title="HiRISE">HiRISE</a> camera on board <a href="/wiki/NASA" title="NASA">NASA</a>'s <i><a href="/wiki/Mars_Reconnaissance_Orbiter" title="Mars Reconnaissance Orbiter">Mars Reconnaissance Orbiter</a></i>.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Apparent_retrograde_motion_of_Mars_in_2003.gif" class="mw-file-description" title="Image 6 Retrograde and direct motion Image credit: Seav An animated image showing the apparent retrograde motion of Mars in 2003 as seen from Earth. All the true planets appear to periodically switch direction as they cross the sky. Because Earth completes its orbit in a shorter period of time than the planets outside its orbit, we periodically overtake them, like a faster car on a multi-lane highway. When this occurs, the planet will first appear to stop its eastward drift, and then drift back toward the west. Then, as Earth swings past the planet in its orbit, it appears to resume its normal motion west to east. More selected pictures"><img alt="Image 6 Retrograde and direct motion Image credit: Seav An animated image showing the apparent retrograde motion of Mars in 2003 as seen from Earth. All the true planets appear to periodically switch direction as they cross the sky. Because Earth completes its orbit in a shorter period of time than the planets outside its orbit, we periodically overtake them, like a faster car on a multi-lane highway. When this occurs, the planet will first appear to stop its eastward drift, and then drift back toward the west. Then, as Earth swings past the planet in its orbit, it appears to resume its normal motion west to east. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Apparent_retrograde_motion_of_Mars_in_2003.gif/120px-Apparent_retrograde_motion_of_Mars_in_2003.gif" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Apparent_retrograde_motion_of_Mars_in_2003.gif/180px-Apparent_retrograde_motion_of_Mars_in_2003.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Apparent_retrograde_motion_of_Mars_in_2003.gif/240px-Apparent_retrograde_motion_of_Mars_in_2003.gif 2x" data-file-width="400" data-file-height="400" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 6</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Retrograde_and_direct_motion" class="mw-redirect" title="Retrograde and direct motion">Retrograde and direct motion</a></span></div><span style="font-size:85%;">Image credit: <a href="/wiki/User:Seav" title="User:Seav">Seav</a></span></div><div style="margin:0.5em 0;">An <a href="/wiki/Animation" title="Animation">animated image</a> showing the <b><a href="/wiki/Retrograde_and_direct_motion" class="mw-redirect" title="Retrograde and direct motion">apparent retrograde motion of Mars</a></b> in 2003 as seen from <a href="/wiki/Earth" title="Earth">Earth</a>. All the true planets appear to periodically switch direction as they cross the sky. Because Earth completes its <a href="/wiki/Orbit" title="Orbit">orbit</a> in a shorter period of time than the planets outside its orbit, we periodically overtake them, like a faster car on a multi-lane highway. When this occurs, the planet will first appear to stop its eastward drift, and then drift back toward the west. Then, as Earth swings past the planet in its orbit, it appears to resume its normal motion west to east.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_Earth_seen_from_Apollo_17.jpg" class="mw-file-description" title="Image 7 The Blue Marble Photo credit: The Apollo 17 crew The Blue Marble is a famous photograph of Earth. NASA officially credits the image to the entire Apollo 17 crew — Eugene Cernan, Ronald Evans and Jack Schmitt — all of whom took photographic images during the mission. Apollo 17 passed over Africa during daylight hours and Antarctica is also illuminated. The photograph was taken approximately five hours after the spacecraft's launch, while en route to the Moon. Apollo 17, notably, was the last manned lunar mission; no humans since have been at a range where taking a "whole-Earth" photograph such as "The Blue Marble" would be possible. More selected pictures"><img alt="Image 7 The Blue Marble Photo credit: The Apollo 17 crew The Blue Marble is a famous photograph of Earth. NASA officially credits the image to the entire Apollo 17 crew — Eugene Cernan, Ronald Evans and Jack Schmitt — all of whom took photographic images during the mission. Apollo 17 passed over Africa during daylight hours and Antarctica is also illuminated. The photograph was taken approximately five hours after the spacecraft's launch, while en route to the Moon. Apollo 17, notably, was the last manned lunar mission; no humans since have been at a range where taking a "whole-Earth" photograph such as "The Blue Marble" would be possible. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/The_Earth_seen_from_Apollo_17.jpg/120px-The_Earth_seen_from_Apollo_17.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/The_Earth_seen_from_Apollo_17.jpg/180px-The_Earth_seen_from_Apollo_17.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/97/The_Earth_seen_from_Apollo_17.jpg/240px-The_Earth_seen_from_Apollo_17.jpg 2x" data-file-width="3000" data-file-height="3002" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 7</span></span><div class="center" style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><i><a href="/wiki/The_Blue_Marble" title="The Blue Marble">The Blue Marble</a></i></span></div><span style="font-size:85%;">Photo credit: <a href="/wiki/Apollo_17" title="Apollo 17">The <i>Apollo 17</i> crew</a></span></div><div style="margin:0.5em 0;"><i><b><a href="/wiki/The_Blue_Marble" title="The Blue Marble">The Blue Marble</a></b></i> is a famous photograph of <a href="/wiki/Earth" title="Earth">Earth</a>. <a href="/wiki/NASA" title="NASA">NASA</a> officially credits the image to the entire <i><a href="/wiki/Apollo_17" title="Apollo 17">Apollo 17</a></i> crew — <a href="/wiki/Eugene_Cernan" class="mw-redirect" title="Eugene Cernan">Eugene Cernan</a>, <a href="/wiki/Ronald_Evans_(astronaut)" title="Ronald Evans (astronaut)">Ronald Evans</a> and <a href="/wiki/Jack_Schmitt" class="mw-redirect" title="Jack Schmitt">Jack Schmitt</a> — all of whom took photographic images during the mission. <i><a href="/wiki/Apollo_17" title="Apollo 17">Apollo 17</a></i> passed over <a href="/wiki/Africa" title="Africa">Africa</a> during daylight hours and <a href="/wiki/Antarctica" title="Antarctica">Antarctica</a> is also illuminated. The photograph was taken approximately five hours after the spacecraft's launch, while <i>en route</i> to the <a href="/wiki/Moon" title="Moon">Moon</a>. <i>Apollo 17</i>, notably, was the last manned lunar mission; no <a href="/wiki/Human" title="Human">humans</a> since have been at a range where taking a "whole-Earth" photograph such as "The Blue Marble" would be possible.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Titan_globe.jpg" class="mw-file-description" title="Image 8 Titan (moon) Image credit: Cassini orbiter The most detailed full-disc view of Titan, the largest moon of Saturn and second-largest in the Solar System. The brighter region on the right side and equatorial region is named Xanadu, and the large, dark region at the center is Shangri-la. This image has been processed to reduce the effects of the atmosphere and to sharpen surface features. It has been trimmed to show only the illuminated surface and not the atmosphere above the edge of the moon. More selected pictures"><img alt="Image 8 Titan (moon) Image credit: Cassini orbiter The most detailed full-disc view of Titan, the largest moon of Saturn and second-largest in the Solar System. The brighter region on the right side and equatorial region is named Xanadu, and the large, dark region at the center is Shangri-la. This image has been processed to reduce the effects of the atmosphere and to sharpen surface features. It has been trimmed to show only the illuminated surface and not the atmosphere above the edge of the moon. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/25/Titan_globe.jpg/120px-Titan_globe.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/25/Titan_globe.jpg/180px-Titan_globe.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/25/Titan_globe.jpg/240px-Titan_globe.jpg 2x" data-file-width="2575" data-file-height="2575" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 8</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Titan_(moon)" title="Titan (moon)">Titan (moon)</a></span></div><span style="font-size:85%;">Image credit: <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens"><i>Cassini</i> orbiter</a></span></div><div style="margin:0.5em 0;">The most detailed full-disc view of <b><a href="/wiki/Titan_(moon)" title="Titan (moon)">Titan</a></b>, the largest moon of <a href="/wiki/Saturn" title="Saturn">Saturn</a> and <a href="/wiki/List_of_moons" class="mw-redirect" title="List of moons">second-largest</a> in the <a href="/wiki/Solar_System" title="Solar System">Solar System</a>. The brighter region on the right side and equatorial region is named <a href="/wiki/Xanadu_(Titan)" title="Xanadu (Titan)">Xanadu</a>, and the large, dark region at the center is <a href="/wiki/Shangri-la_(Titan)" class="mw-redirect" title="Shangri-la (Titan)">Shangri-la</a>. This image has been processed to reduce the effects of the atmosphere and to sharpen surface features. It has been trimmed to show only the illuminated surface and not the atmosphere above the edge of the moon.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Phobos_colour_2008.jpg" class="mw-file-description" title="Image 9 Phobos (moon) Photo credit: Mars Reconnaissance Orbiter Phobos, the larger and closer of the two moons of Mars, as seen from about 6,000 kilometres (3,700 mi) away. A small, irregularly shaped object, Phobos orbits about 9,377 km (5,827 mi) from the center of Mars, closer to its primary than any other planetary moon. The illuminated part of Phobos seen in the images is about 21 km (13 mi) across. The most prominent feature in the images is the large crater Stickney in the lower right. With a diameter of 9 km (5.6 mi), it is the largest feature on Phobos. More selected pictures"><img alt="Image 9 Phobos (moon) Photo credit: Mars Reconnaissance Orbiter Phobos, the larger and closer of the two moons of Mars, as seen from about 6,000 kilometres (3,700 mi) away. A small, irregularly shaped object, Phobos orbits about 9,377 km (5,827 mi) from the center of Mars, closer to its primary than any other planetary moon. The illuminated part of Phobos seen in the images is about 21 km (13 mi) across. The most prominent feature in the images is the large crater Stickney in the lower right. With a diameter of 9 km (5.6 mi), it is the largest feature on Phobos. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Phobos_colour_2008.jpg/120px-Phobos_colour_2008.jpg" decoding="async" width="120" height="113" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Phobos_colour_2008.jpg/180px-Phobos_colour_2008.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Phobos_colour_2008.jpg/240px-Phobos_colour_2008.jpg 2x" data-file-width="3500" data-file-height="3300" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 9</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Phobos_(moon)" title="Phobos (moon)">Phobos (moon)</a></span></div><span style="font-size:85%;">Photo credit: <a href="/wiki/Mars_Reconnaissance_Orbiter" title="Mars Reconnaissance Orbiter">Mars Reconnaissance Orbiter</a></span></div><div style="margin:0.5em 0;"><b><a href="/wiki/Phobos_(moon)" title="Phobos (moon)">Phobos</a></b>, the larger and closer of the two <a href="/wiki/Natural_satellite" title="Natural satellite">moons</a> of <a href="/wiki/Mars" title="Mars">Mars</a>, as seen from about 6,000 kilometres (3,700 mi) away. A small, irregularly shaped object, Phobos orbits about 9,377 km (5,827 mi) from the center of Mars, closer to its primary than any other planetary moon. The illuminated part of Phobos seen in the images is about 21 km (13 mi) across. The most prominent feature in the images is the large <a href="/wiki/Impact_crater" title="Impact crater">crater</a> <a href="/wiki/Stickney_(crater)" title="Stickney (crater)">Stickney</a> in the lower right. With a diameter of 9 km (5.6 mi), it is the largest feature on Phobos.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Blank.png" class="mw-file-description" title="Image 10 Solar eclipse of 11 August 1999 Solar eclipse of 1999 August 11 Credit: Luc Viatour The solar eclipse of 1999 August 11, as seen from France. This was the most viewed total eclipse in human history, although some areas offered impaired visibility due to adverse weather conditions. The path of the Moon's shadow began in the Atlantic Ocean, before traversing Cornwall, northern France, southern Germany, Austria, Hungary and northern Serbia. Its maximum was in Romania, and it continued across the Black Sea, Turkey, Iran, southern Pakistan and India. '"`UNIQ--templatestyles-00000011-QINU`"' More selected pictures"><img alt="Image 10 Solar eclipse of 11 August 1999 Solar eclipse of 1999 August 11 Credit: Luc Viatour The solar eclipse of 1999 August 11, as seen from France. This was the most viewed total eclipse in human history, although some areas offered impaired visibility due to adverse weather conditions. The path of the Moon's shadow began in the Atlantic Ocean, before traversing Cornwall, northern France, southern Germany, Austria, Hungary and northern Serbia. Its maximum was in Romania, and it continued across the Black Sea, Turkey, Iran, southern Pakistan and India. '"`UNIQ--templatestyles-00000011-QINU`"' More selected pictures" src="//upload.wikimedia.org/wikipedia/en/d/d2/Blank.png" decoding="async" width="120" height="80" class="mw-file-element" data-file-width="3" data-file-height="2" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 10</span></span><div style="text-align: center;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Solar_eclipse_1999_4.jpg" class="mw-file-description" title="Solar eclipse of 11 August 1999"><img alt="Solar eclipse of 11 August 1999" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Solar_eclipse_1999_4.jpg/400px-Solar_eclipse_1999_4.jpg" decoding="async" width="400" height="394" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Solar_eclipse_1999_4.jpg/600px-Solar_eclipse_1999_4.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Solar_eclipse_1999_4.jpg/800px-Solar_eclipse_1999_4.jpg 2x" data-file-width="3543" data-file-height="3489" /></a><figcaption>Solar eclipse of 11 August 1999</figcaption></figure><div style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Solar_eclipse_of_1999_August_11" class="mw-redirect" title="Solar eclipse of 1999 August 11">Solar eclipse of 1999 August 11</a></span></div><small>Credit: <a href="/wiki/User:Lviatour" title="User:Lviatour">Luc Viatour</a></small></div></div><div class="center" style="width:auto; margin-left:auto; margin-right:auto;">The <b><a href="/wiki/Solar_eclipse_of_1999_August_11" class="mw-redirect" title="Solar eclipse of 1999 August 11">solar eclipse of 1999 August 11</a></b>, as seen from France. This was the most viewed <a href="/wiki/Total_eclipse" class="mw-redirect" title="Total eclipse">total eclipse</a> in human history, although some areas offered impaired visibility due to adverse weather conditions. The path of the <a href="/wiki/Moon" title="Moon">Moon</a>'s shadow began in the <a href="/wiki/Atlantic_Ocean" title="Atlantic Ocean">Atlantic Ocean</a>, before traversing <a href="/wiki/Cornwall" title="Cornwall">Cornwall</a>, northern <a href="/wiki/France" title="France">France</a>, southern <a href="/wiki/Germany" title="Germany">Germany</a>, <a href="/wiki/Austria" title="Austria">Austria</a>, <a href="/wiki/Hungary" title="Hungary">Hungary</a> and northern <a href="/wiki/Serbia" title="Serbia">Serbia</a>. Its maximum was in <a href="/wiki/Romania" title="Romania">Romania</a>, and it continued across the <a href="/wiki/Black_Sea" title="Black Sea">Black Sea</a>, <a href="/wiki/Turkey" title="Turkey">Turkey</a>, <a href="/wiki/Iran" title="Iran">Iran</a>, southern <a href="/wiki/Pakistan" title="Pakistan">Pakistan</a> and <a href="/wiki/India" title="India">India</a>.</div><div class="noprint" style="text-align:right; margin-top:0.5em;"><br />'"`UNIQ--templatestyles-00000011-QINU`"'<br /><div class="hlist"><ul><li><b><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></b></li></ul></div></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Blank.png" class="mw-file-description" title="Image 11 Mars Mars Credit: NASA Mars, the fourth planet from the Sun, is named after the Roman god of war because of its blood red color. Mars has two small, oddly-shaped moons, Phobos and Deimos, named after the sons of the Greek god Ares. At some point in the future Phobos will be broken up by gravitational forces. The atmosphere on Mars is 95% carbon dioxide. In 2003 methane was also discovered in the atmosphere. Since methane is an unstable gas, this indicates that there must be (or have been within the last few hundred years) a source of the gas on the planet. '"`UNIQ--templatestyles-0000000E-QINU`"' More selected pictures"><img alt="Image 11 Mars Mars Credit: NASA Mars, the fourth planet from the Sun, is named after the Roman god of war because of its blood red color. Mars has two small, oddly-shaped moons, Phobos and Deimos, named after the sons of the Greek god Ares. At some point in the future Phobos will be broken up by gravitational forces. The atmosphere on Mars is 95% carbon dioxide. In 2003 methane was also discovered in the atmosphere. Since methane is an unstable gas, this indicates that there must be (or have been within the last few hundred years) a source of the gas on the planet. '"`UNIQ--templatestyles-0000000E-QINU`"' More selected pictures" src="//upload.wikimedia.org/wikipedia/en/d/d2/Blank.png" decoding="async" width="120" height="80" class="mw-file-element" data-file-width="3" data-file-height="2" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 11</span></span><div style="text-align: center;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Mars_Valles_Marineris.jpeg" class="mw-file-description" title="Mars"><img alt="Mars" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Mars_Valles_Marineris.jpeg/500px-Mars_Valles_Marineris.jpeg" decoding="async" width="500" height="500" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Mars_Valles_Marineris.jpeg/750px-Mars_Valles_Marineris.jpeg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Mars_Valles_Marineris.jpeg/1000px-Mars_Valles_Marineris.jpeg 2x" data-file-width="1552" data-file-height="1552" /></a><figcaption>Mars</figcaption></figure><div style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Mars" title="Mars">Mars</a></span></div><small>Credit: <a href="/wiki/NASA" title="NASA">NASA</a></small></div></div><div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><b><a href="/wiki/Mars_(planet)" class="mw-redirect" title="Mars (planet)">Mars</a></b>, the fourth <a href="/wiki/Planet" title="Planet">planet</a> from the <a href="/wiki/Sun" title="Sun">Sun</a>, is named after the <a href="/wiki/Mars_(god)" class="mw-redirect" title="Mars (god)">Roman god of war</a> because of its blood <a href="/wiki/Red" title="Red">red</a> color. Mars has two small, oddly-shaped moons, <a href="/wiki/Phobos_(moon)" title="Phobos (moon)">Phobos</a> and <a href="/wiki/Deimos_(moon)" title="Deimos (moon)">Deimos</a>, named after the sons of the <a href="/wiki/Ancient_Greece" title="Ancient Greece">Greek</a> god <a href="/wiki/Ares" title="Ares">Ares</a>. At some point in the future Phobos will be broken up by <a href="/wiki/Roche_limit" title="Roche limit">gravitational forces</a>. The atmosphere on Mars is 95% <a href="/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a>. In 2003 <a href="/wiki/Methane" title="Methane">methane</a> was also discovered in the atmosphere. Since methane is an unstable gas, this indicates that there must be (or have been within the last few hundred years) a source of the <a href="/wiki/Gas" title="Gas">gas</a> on the planet.</div><div class="noprint" style="text-align:right; margin-top:0.5em;"><br />'"`UNIQ--templatestyles-0000000E-QINU`"'<br /><div class="hlist"><ul><li><b><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></b></li></ul></div></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Blank.png" class="mw-file-description" title="Image 12 Comet Hale-Bopp 29-03-1997 Comet Hale–Bopp Credit: Philipp Salzgeber Comet Hale–Bopp sails across the sky in the vicinity of Pazin in Istria, Croatia. To the lower right of the comet the Andromeda Galaxy is also faintly visible. The comet was visible to the naked eye for a record 18 months, twice as long as the Great Comet of 1811. At perihelion, it shone brighter than any star in the sky except Sirius, and its two tails stretched 30-40 degrees across the sky. The passage of Hale-Bopp was notable also for inciting a degree of panic about comets not seen for decades. Rumours that the comet was being followed by an alien spacecraft inspired a mass suicide among followers of the Heaven's Gate cult. '"`UNIQ--templatestyles-0000000F-QINU`"' More selected pictures"><img alt="Image 12 Comet Hale-Bopp 29-03-1997 Comet Hale–Bopp Credit: Philipp Salzgeber Comet Hale–Bopp sails across the sky in the vicinity of Pazin in Istria, Croatia. To the lower right of the comet the Andromeda Galaxy is also faintly visible. The comet was visible to the naked eye for a record 18 months, twice as long as the Great Comet of 1811. At perihelion, it shone brighter than any star in the sky except Sirius, and its two tails stretched 30-40 degrees across the sky. The passage of Hale-Bopp was notable also for inciting a degree of panic about comets not seen for decades. Rumours that the comet was being followed by an alien spacecraft inspired a mass suicide among followers of the Heaven's Gate cult. '"`UNIQ--templatestyles-0000000F-QINU`"' More selected pictures" src="//upload.wikimedia.org/wikipedia/en/d/d2/Blank.png" decoding="async" width="120" height="80" class="mw-file-element" data-file-width="3" data-file-height="2" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 12</span></span><div style="text-align: center;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Comet-Hale-Bopp-29-03-1997_hires_adj.jpg" class="mw-file-description" title="Comet Hale-Bopp 29-03-1997"><img alt="Comet Hale-Bopp 29-03-1997" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Comet-Hale-Bopp-29-03-1997_hires_adj.jpg/225px-Comet-Hale-Bopp-29-03-1997_hires_adj.jpg" decoding="async" width="225" height="293" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Comet-Hale-Bopp-29-03-1997_hires_adj.jpg/338px-Comet-Hale-Bopp-29-03-1997_hires_adj.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/df/Comet-Hale-Bopp-29-03-1997_hires_adj.jpg/450px-Comet-Hale-Bopp-29-03-1997_hires_adj.jpg 2x" data-file-width="2080" data-file-height="2712" /></a><figcaption>Comet Hale-Bopp 29-03-1997</figcaption></figure><div style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Comet_Hale%E2%80%93Bopp" title="Comet Hale–Bopp">Comet Hale–Bopp</a></span></div><small>Credit: Philipp Salzgeber</small></div></div><div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><b><a href="/wiki/Comet_Hale%E2%80%93Bopp" title="Comet Hale–Bopp">Comet Hale–Bopp</a></b> sails across the sky in the vicinity of <a href="/wiki/Pazin" title="Pazin">Pazin</a> in <a href="/wiki/Istria" title="Istria">Istria</a>, <a href="/wiki/Croatia" title="Croatia">Croatia</a>. To the lower right of the comet the <a href="/wiki/Andromeda_Galaxy" title="Andromeda Galaxy">Andromeda Galaxy</a> is also faintly visible. The <a href="/wiki/Comet" title="Comet">comet</a> was visible to the naked eye for a record 18 months, twice as long as the <a href="/wiki/Great_Comet_of_1811" title="Great Comet of 1811">Great Comet of 1811</a>. At <a href="/wiki/Perihelion" class="mw-redirect" title="Perihelion">perihelion</a>, it shone brighter than any star in the sky except <a href="/wiki/Sirius" title="Sirius">Sirius</a>, and its two tails stretched 30-40 degrees across the sky. The passage of Hale-Bopp was notable also for inciting a degree of panic about comets not seen for decades. Rumours that the comet was being followed by an <a href="/wiki/Extraterrestrial_life" title="Extraterrestrial life">alien</a> <a href="/wiki/Spacecraft" title="Spacecraft">spacecraft</a> inspired a mass suicide among followers of the <a href="/wiki/Heaven%27s_Gate_(religious_group)" title="Heaven's Gate (religious group)">Heaven's Gate</a> <a href="/wiki/Cult" title="Cult">cult</a>.</div><div class="noprint" style="text-align:right; margin-top:0.5em;"><br />'"`UNIQ--templatestyles-0000000F-QINU`"'<br /><div class="hlist"><ul><li><b><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></b></li></ul></div></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Blank.png" class="mw-file-description" title="Image 13 Earthrise, as seen by Apollo 8 Apollo 8 Credit: William Anders Earthrise, the first occasion in which humans saw the Earth seemingly rising above the surface of the Moon, taken during the Apollo 8 mission on December 24, 1968. This view was seen by the crew at the beginning of its fourth orbit around the Moon, although the first photograph taken was in black-and-white. Note that the Earth is in shadow here. A photo of a fully lit Earth would not be taken until the Apollo 17 mission. '"`UNIQ--templatestyles-00000010-QINU`"' More selected pictures"><img alt="Image 13 Earthrise, as seen by Apollo 8 Apollo 8 Credit: William Anders Earthrise, the first occasion in which humans saw the Earth seemingly rising above the surface of the Moon, taken during the Apollo 8 mission on December 24, 1968. This view was seen by the crew at the beginning of its fourth orbit around the Moon, although the first photograph taken was in black-and-white. Note that the Earth is in shadow here. A photo of a fully lit Earth would not be taken until the Apollo 17 mission. '"`UNIQ--templatestyles-00000010-QINU`"' More selected pictures" src="//upload.wikimedia.org/wikipedia/en/d/d2/Blank.png" decoding="async" width="120" height="80" class="mw-file-element" data-file-width="3" data-file-height="2" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 13</span></span><div style="text-align: center;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:NASA-Apollo8-Dec24-Earthrise.jpg" class="mw-file-description" title="Earthrise, as seen by Apollo 8"><img alt="Earthrise, as seen by Apollo 8" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/NASA-Apollo8-Dec24-Earthrise.jpg/400px-NASA-Apollo8-Dec24-Earthrise.jpg" decoding="async" width="400" height="400" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/NASA-Apollo8-Dec24-Earthrise.jpg/600px-NASA-Apollo8-Dec24-Earthrise.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a8/NASA-Apollo8-Dec24-Earthrise.jpg/800px-NASA-Apollo8-Dec24-Earthrise.jpg 2x" data-file-width="2400" data-file-height="2400" /></a><figcaption>Earthrise, as seen by Apollo 8</figcaption></figure><div style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Apollo_8" title="Apollo 8">Apollo 8</a></span></div><small>Credit: <a href="/wiki/William_Anders" title="William Anders">William Anders</a></small></div></div><div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><i><a href="/wiki/Earthrise" title="Earthrise">Earthrise</a></i>, the first occasion in which humans saw the <a href="/wiki/Earth" title="Earth">Earth</a> seemingly rising above the surface of the <a href="/wiki/Moon" title="Moon">Moon</a>, taken during the <b><a href="/wiki/Apollo_8" title="Apollo 8">Apollo 8</a></b> mission on December 24, 1968. This view was seen by the crew at the beginning of its fourth <a href="/wiki/Circular_orbit" title="Circular orbit">orbit</a> around the Moon, although the <a href="/wiki/File:AS8-13-2329.jpg" title="File:AS8-13-2329.jpg">first photograph</a> taken was in black-and-white. Note that the Earth is in shadow here. A photo of a <a href="/wiki/The_Blue_Marble" title="The Blue Marble">fully lit Earth</a> would not be taken until the <a href="/wiki/Apollo_17" title="Apollo 17">Apollo 17</a> mission.</div><div class="noprint" style="text-align:right; margin-top:0.5em;"><br />'"`UNIQ--templatestyles-00000010-QINU`"'<br /><div class="hlist"><ul><li><b><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></b></li></ul></div></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Blank.png" class="mw-file-description" title="Image 14 Sunspot TRACE image Sunspot Credit: NASA/TRACE A TRACE image of sunspots on the surface, or photosphere, of the Sun from September 2002, is taken in the far ultraviolet on a relatively quiet day for solar activity. However, the image still shows a large sunspot group visible as a bright area near the horizon. Although sunspots are relatively cool regions on the surface of the Sun, the bright glowing gas flowing around the sunspots have a temperature of over one million °C (1.8 million °F). The high temperatures are thought to be related to the rapidly changing magnetic field loops that channel solar plasma. '"`UNIQ--templatestyles-00000012-QINU`"' More selected pictures"><img alt="Image 14 Sunspot TRACE image Sunspot Credit: NASA/TRACE A TRACE image of sunspots on the surface, or photosphere, of the Sun from September 2002, is taken in the far ultraviolet on a relatively quiet day for solar activity. However, the image still shows a large sunspot group visible as a bright area near the horizon. Although sunspots are relatively cool regions on the surface of the Sun, the bright glowing gas flowing around the sunspots have a temperature of over one million °C (1.8 million °F). The high temperatures are thought to be related to the rapidly changing magnetic field loops that channel solar plasma. '"`UNIQ--templatestyles-00000012-QINU`"' More selected pictures" src="//upload.wikimedia.org/wikipedia/en/d/d2/Blank.png" decoding="async" width="120" height="80" class="mw-file-element" data-file-width="3" data-file-height="2" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 14</span></span><div style="text-align: center;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Sunspot_TRACE.jpeg" class="mw-file-description" title="Sunspot TRACE image"><img alt="Sunspot TRACE image" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Sunspot_TRACE.jpeg/500px-Sunspot_TRACE.jpeg" decoding="async" width="500" height="410" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Sunspot_TRACE.jpeg/750px-Sunspot_TRACE.jpeg 1.5x, //upload.wikimedia.org/wikipedia/commons/b/bc/Sunspot_TRACE.jpeg 2x" data-file-width="898" data-file-height="737" /></a><figcaption>Sunspot TRACE image</figcaption></figure><div style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Sunspot" title="Sunspot">Sunspot</a></span></div><small>Credit: <a href="/wiki/NASA" title="NASA">NASA</a>/<a href="/wiki/TRACE" title="TRACE">TRACE</a></small></div></div><div class="center" style="width:auto; margin-left:auto; margin-right:auto;">A <a href="/wiki/TRACE" title="TRACE">TRACE</a> image of <b><a href="/wiki/Sunspot" title="Sunspot">sunspots</a></b> on the surface, or <a href="/wiki/Photosphere" title="Photosphere">photosphere</a>, of the <a href="/wiki/Sun" title="Sun">Sun</a> from September <a href="/wiki/2002" title="2002">2002</a>, is taken in the far <a href="/wiki/Ultraviolet" title="Ultraviolet">ultraviolet</a> on a relatively quiet day for solar activity. However, the image still shows a large sunspot group visible as a bright area near the horizon. Although sunspots are relatively cool regions on the surface of the Sun, the bright glowing gas flowing around the sunspots have a temperature of over one million °C (1.8 million °F). The high <a href="/wiki/Temperature" title="Temperature">temperatures</a> are thought to be related to the rapidly changing <a href="/wiki/Magnetic_field" title="Magnetic field">magnetic field</a> loops that channel solar <a href="/wiki/Plasma_(physics)" title="Plasma (physics)">plasma</a>.</div><div class="noprint" style="text-align:right; margin-top:0.5em;"><br />'"`UNIQ--templatestyles-00000012-QINU`"'<br /><div class="hlist"><ul><li><b><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></b></li></ul></div></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Bartolomeu_Velho_1568.jpg" class="mw-file-description" title="Image 15 Geocentric model Photo credit: Joaquim Alves Gaspar Illustration of the Ptolemaic geocentric model of the Universe (the theory that the Earth is the center of the universe) by Portuguese cosmographer and cartographer Bartolomeu Velho. Taken from his treatise Cosmographia, made in Paris, 1568. Notice the distances of the bodies to the centre of the Earth (left) and the times of revolution, in years (right). More selected pictures"><img alt="Image 15 Geocentric model Photo credit: Joaquim Alves Gaspar Illustration of the Ptolemaic geocentric model of the Universe (the theory that the Earth is the center of the universe) by Portuguese cosmographer and cartographer Bartolomeu Velho. Taken from his treatise Cosmographia, made in Paris, 1568. Notice the distances of the bodies to the centre of the Earth (left) and the times of revolution, in years (right). More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Bartolomeu_Velho_1568.jpg/120px-Bartolomeu_Velho_1568.jpg" decoding="async" width="120" height="89" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Bartolomeu_Velho_1568.jpg/180px-Bartolomeu_Velho_1568.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Bartolomeu_Velho_1568.jpg/240px-Bartolomeu_Velho_1568.jpg 2x" data-file-width="3255" data-file-height="2402" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 15</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Geocentric_model" title="Geocentric model">Geocentric model</a></span></div><span style="font-size:85%;">Photo credit: <a href="/wiki/User:Alvesgaspar" title="User:Alvesgaspar">Joaquim Alves Gaspar</a></span></div><div style="margin:0.5em 0;">Illustration of the <a href="/wiki/Ptolemy" title="Ptolemy">Ptolemaic</a> <b><a href="/wiki/Geocentric_model" title="Geocentric model">geocentric model</a></b> of the Universe (the theory that the <a href="/wiki/Earth" title="Earth">Earth</a> is the center of the <a href="/wiki/Universe" title="Universe">universe</a>) by <a href="/wiki/Portuguese_people" title="Portuguese people">Portuguese</a> cosmographer and cartographer <a href="/wiki/Bartolomeu_Velho" title="Bartolomeu Velho">Bartolomeu Velho</a>. Taken from his treatise <i>Cosmographia</i>, made in Paris, 1568. Notice the distances of the bodies to the centre of the Earth (left) and the times of revolution, in years (right).</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:MRO_image_of_Mars_North_Pole.jpg" class="mw-file-description" title="Image 16 Planum Boreum Photo credit: Mars Reconnaissance Orbiter False-color Mars Reconnaissance Orbiter image of a side of the Chasma Boreale, a canyon in the polar ice cap of the Planum Boreum (north pole of Mars). Light browns are layers of surface dust, greys and blues are layers of water and carbon dioxide ice. Regular geometric cracking is indicative of higher concentrations of water ice. The Planum Boreum's permanent ice cap has a maximum depth of 3 km (1.9 mi). It is roughly 1200 km (750 mi) in diameter, an area equivalent to about 1½ times the size of Texas. The Chasma Boreale is up to 100 km (62.5 mi) wide and features scarps up to 2 km (1.25 mi) high. For a comparison, the Grand Canyon is approximately 1.6 km (1 mi) deep in some places and 446 km (279 mi) long but only up to 24 km (15 mi) wide. More selected pictures"><img alt="Image 16 Planum Boreum Photo credit: Mars Reconnaissance Orbiter False-color Mars Reconnaissance Orbiter image of a side of the Chasma Boreale, a canyon in the polar ice cap of the Planum Boreum (north pole of Mars). Light browns are layers of surface dust, greys and blues are layers of water and carbon dioxide ice. Regular geometric cracking is indicative of higher concentrations of water ice. The Planum Boreum's permanent ice cap has a maximum depth of 3 km (1.9 mi). It is roughly 1200 km (750 mi) in diameter, an area equivalent to about 1½ times the size of Texas. The Chasma Boreale is up to 100 km (62.5 mi) wide and features scarps up to 2 km (1.25 mi) high. For a comparison, the Grand Canyon is approximately 1.6 km (1 mi) deep in some places and 446 km (279 mi) long but only up to 24 km (15 mi) wide. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/MRO_image_of_Mars_North_Pole.jpg/47px-MRO_image_of_Mars_North_Pole.jpg" decoding="async" width="47" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/MRO_image_of_Mars_North_Pole.jpg/71px-MRO_image_of_Mars_North_Pole.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c3/MRO_image_of_Mars_North_Pole.jpg/95px-MRO_image_of_Mars_North_Pole.jpg 2x" data-file-width="2000" data-file-height="5060" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 16</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Planum_Boreum" title="Planum Boreum">Planum Boreum</a></span></div><span style="font-size:85%;">Photo credit: <a href="/wiki/Mars_Reconnaissance_Orbiter" title="Mars Reconnaissance Orbiter">Mars Reconnaissance Orbiter</a></span></div><div style="margin:0.5em 0;"><a href="/wiki/False-color" class="mw-redirect" title="False-color">False-color</a> <a href="/wiki/Mars_Reconnaissance_Orbiter" title="Mars Reconnaissance Orbiter">Mars Reconnaissance Orbiter</a> image of a side of the Chasma Boreale, a canyon in the polar <a href="/wiki/Ice_cap" title="Ice cap">ice cap</a> of the <b><a href="/wiki/Planum_Boreum" title="Planum Boreum">Planum Boreum</a></b> (north pole of <a href="/wiki/Mars" title="Mars">Mars</a>). Light browns are layers of surface dust, greys and blues are layers of <a href="/wiki/Water" title="Water">water</a> and <a href="/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a> ice. Regular geometric cracking is indicative of higher concentrations of water ice.<br /><br />The Planum Boreum's permanent ice cap has a maximum depth of 3 km (1.9 mi). It is roughly 1200 km (750 mi) in diameter, an area equivalent to about 1½ times the size of <a href="/wiki/Texas" title="Texas">Texas</a>. The Chasma Boreale is up to 100 km (62.5 mi) wide and features <a href="/wiki/Escarpment" title="Escarpment">scarps</a> up to 2 km (1.25 mi) high. For a comparison, the <a href="/wiki/Grand_Canyon" title="Grand Canyon">Grand Canyon</a> is approximately 1.6 km (1 mi) deep in some places and 446 km (279 mi) long but only up to 24 km (15 mi) wide.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Hyperion_false_color.jpg" class="mw-file-description" title="Image 17 Hyperion Photo credit: Cassini orbiter Hyperion, a moon of Saturn, is one of the largest highly irregular (non-spherical) bodies in the Solar System. Enhanced image processing was used to bring out details and color differences in this photo taken by the Cassini orbiter. Hyperion is entirely saturated with deep, sharp-edged craters that give it the appearance of a giant sponge. Dark material fills the bottom of each crater. More selected pictures"><img alt="Image 17 Hyperion Photo credit: Cassini orbiter Hyperion, a moon of Saturn, is one of the largest highly irregular (non-spherical) bodies in the Solar System. Enhanced image processing was used to bring out details and color differences in this photo taken by the Cassini orbiter. Hyperion is entirely saturated with deep, sharp-edged craters that give it the appearance of a giant sponge. Dark material fills the bottom of each crater. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Hyperion_false_color.jpg/120px-Hyperion_false_color.jpg" decoding="async" width="120" height="119" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Hyperion_false_color.jpg/180px-Hyperion_false_color.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Hyperion_false_color.jpg/240px-Hyperion_false_color.jpg 2x" data-file-width="2988" data-file-height="2953" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 17</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Hyperion_(moon)" title="Hyperion (moon)">Hyperion</a></span></div><span style="font-size:85%;">Photo credit: <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens"><i>Cassini</i> orbiter</a></span></div><div style="margin:0.5em 0;"><b><a href="/wiki/Hyperion_(moon)" title="Hyperion (moon)">Hyperion</a></b>, a moon of <a href="/wiki/Saturn" title="Saturn">Saturn</a>, is one of the largest highly irregular (non-spherical) bodies in the <a href="/wiki/Solar_System" title="Solar System">Solar System</a>. Enhanced image processing was used to bring out details and color differences in this photo taken by the <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens"><i>Cassini</i> orbiter</a>. Hyperion is entirely saturated with deep, sharp-edged <a href="/wiki/Impact_crater" title="Impact crater">craters</a> that give it the appearance of a giant sponge. Dark material fills the bottom of each crater.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Blank.png" class="mw-file-description" title="Image 18 Jupiter Jupiter Credit: Cassini probe Jupiter is the fifth planet from the Sun and by far the largest within the Solar System. It is 318 times more massive than Earth, with a diameter 11 times that of Earth, and with a volume 1300 times that of Earth. Its best known feature is the Great Red Spot, a storm larger than Earth, which was first observed by Galileo four centuries ago. This picture, taken by the Cassini orbiter was one of 26 thousand images taken of Jupiter during the course of its flyby and is the most detailed global color portrait of the planet ever produced. '"`UNIQ--templatestyles-00000014-QINU`"' More selected pictures"><img alt="Image 18 Jupiter Jupiter Credit: Cassini probe Jupiter is the fifth planet from the Sun and by far the largest within the Solar System. It is 318 times more massive than Earth, with a diameter 11 times that of Earth, and with a volume 1300 times that of Earth. Its best known feature is the Great Red Spot, a storm larger than Earth, which was first observed by Galileo four centuries ago. This picture, taken by the Cassini orbiter was one of 26 thousand images taken of Jupiter during the course of its flyby and is the most detailed global color portrait of the planet ever produced. '"`UNIQ--templatestyles-00000014-QINU`"' More selected pictures" src="//upload.wikimedia.org/wikipedia/en/d/d2/Blank.png" decoding="async" width="120" height="80" class="mw-file-element" data-file-width="3" data-file-height="2" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 18</span></span><div style="text-align: center;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Portrait_of_Jupiter_from_Cassini.jpg" class="mw-file-description" title="Jupiter"><img alt="Jupiter" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Portrait_of_Jupiter_from_Cassini.jpg/400px-Portrait_of_Jupiter_from_Cassini.jpg" decoding="async" width="400" height="500" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Portrait_of_Jupiter_from_Cassini.jpg/600px-Portrait_of_Jupiter_from_Cassini.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Portrait_of_Jupiter_from_Cassini.jpg/800px-Portrait_of_Jupiter_from_Cassini.jpg 2x" data-file-width="1920" data-file-height="2400" /></a><figcaption>Jupiter</figcaption></figure><div style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Jupiter" title="Jupiter">Jupiter</a></span></div><small>Credit: <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens"><i>Cassini</i> probe</a></small></div></div><div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><b><a href="/wiki/Jupiter" title="Jupiter">Jupiter</a></b> is the fifth <a href="/wiki/Planet" title="Planet">planet</a> from the Sun and by far the <a href="/wiki/Solar_system_by_size" class="mw-redirect" title="Solar system by size">largest</a> within the <a href="/wiki/Solar_System" title="Solar System">Solar System</a>. It is 318 times more massive than Earth, with a <a href="/wiki/Diameter" title="Diameter">diameter</a> 11 times that of Earth, and with a <a href="/wiki/Volume" title="Volume">volume</a> 1300 times that of Earth. Its best known feature is the <a href="/wiki/Great_Red_Spot" title="Great Red Spot">Great Red Spot</a>, a <a href="/wiki/Storm" title="Storm">storm</a> larger than Earth, which was first observed by <a href="/wiki/Galileo" class="mw-redirect" title="Galileo">Galileo</a> four centuries ago. This picture, taken by the <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens"><i>Cassini</i> orbiter</a> was one of 26 thousand images taken of Jupiter during the course of its flyby and is the most detailed global color portrait of the planet ever produced.</div><div class="noprint" style="text-align:right; margin-top:0.5em;"><br />'"`UNIQ--templatestyles-00000014-QINU`"'<br /><div class="hlist"><ul><li><b><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></b></li></ul></div></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Blank.png" class="mw-file-description" title="Image 19 Five global views of Venus by Magellan. Magellan (spacecraft) Credit: NASA/Jet Propulsion Laboratory These images are composites of the complete radar image collection obtained by the Magellan mission. The Magellan spacecraft was launched aboard Space Shuttle Atlantis in May 1989 and began mapping the surface of Venus in September 1990. The spacecraft continued to orbit Venus for four years, returning high-resolution images, altimetry, thermal emissions and gravity maps of 98 percent of the surface. Magellan spacecraft operations ended on October 12, 1994, when the radio contact was lost with the spacecraft during its controlled descent into the deeper portions of the Venusian atmosphere. '"`UNIQ--templatestyles-00000013-QINU`"' More selected pictures"><img alt="Image 19 Five global views of Venus by Magellan. Magellan (spacecraft) Credit: NASA/Jet Propulsion Laboratory These images are composites of the complete radar image collection obtained by the Magellan mission. The Magellan spacecraft was launched aboard Space Shuttle Atlantis in May 1989 and began mapping the surface of Venus in September 1990. The spacecraft continued to orbit Venus for four years, returning high-resolution images, altimetry, thermal emissions and gravity maps of 98 percent of the surface. Magellan spacecraft operations ended on October 12, 1994, when the radio contact was lost with the spacecraft during its controlled descent into the deeper portions of the Venusian atmosphere. '"`UNIQ--templatestyles-00000013-QINU`"' More selected pictures" src="//upload.wikimedia.org/wikipedia/en/d/d2/Blank.png" decoding="async" width="120" height="80" class="mw-file-element" data-file-width="3" data-file-height="2" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 19</span></span><div style="text-align: center;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Magellan_Venus_globes.jpg" class="mw-file-description" title="Five global views of Venus by Magellan."><img alt="Five global views of Venus by Magellan." src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Magellan_Venus_globes.jpg/400px-Magellan_Venus_globes.jpg" decoding="async" width="400" height="400" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Magellan_Venus_globes.jpg/600px-Magellan_Venus_globes.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Magellan_Venus_globes.jpg/800px-Magellan_Venus_globes.jpg 2x" data-file-width="2125" data-file-height="2125" /></a><figcaption>Five global views of <a href="/wiki/Venus" title="Venus">Venus</a> by <i><a href="/wiki/Magellan_(spacecraft)" title="Magellan (spacecraft)">Magellan</a></i>.</figcaption></figure><div style="margin: 0.5em 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Magellan_(spacecraft)" title="Magellan (spacecraft)">Magellan (spacecraft)</a></span></div><small>Credit: <a href="/wiki/NASA" title="NASA">NASA</a>/<a href="/wiki/Jet_Propulsion_Laboratory" title="Jet Propulsion Laboratory">Jet Propulsion Laboratory</a></small></div></div><div class="center" style="width:auto; margin-left:auto; margin-right:auto;">These images are composites of the complete radar image collection obtained by the <i><b><a href="/wiki/Magellan_(spacecraft)" title="Magellan (spacecraft)">Magellan</a></b></i> mission. The <i><a href="/wiki/Magellan_(spacecraft)" title="Magellan (spacecraft)">Magellan</a></i> spacecraft was launched aboard <a href="/wiki/Space_Shuttle_Atlantis" title="Space Shuttle Atlantis">Space Shuttle <i>Atlantis</i></a> in May 1989 and began mapping the surface of <a href="/wiki/Venus" title="Venus">Venus</a> in September 1990. The spacecraft continued to orbit <a href="/wiki/Venus" title="Venus">Venus</a> for four years, returning high-resolution images, altimetry, thermal emissions and gravity maps of 98 percent of the surface. <i><a href="/wiki/Magellan_(spacecraft)" title="Magellan (spacecraft)">Magellan</a></i> spacecraft operations ended on October 12, 1994, when the radio contact was lost with the spacecraft during its controlled descent into the deeper portions of the <a href="/wiki/Venus" title="Venus">Venusian</a> atmosphere.</div><div class="noprint" style="text-align:right; margin-top:0.5em;"><br />'"`UNIQ--templatestyles-00000013-QINU`"'<br /><div class="hlist"><ul><li><b><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></b></li></ul></div></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Aurora_Australis_From_ISS.JPG" class="mw-file-description" title="Image 20 Aurora australis Photo: NASA/ISS Expedition 23 crew The aurora australis, as seen from the International Space Station. Aurorae are natural light displays in the sky caused by the collision of energetic charged particles with atoms in the high altitude thermosphere. The particles originate in the magnetosphere and solar wind and, on Earth, are directed by Earth's magnetic field into the atmosphere. More selected pictures"><img alt="Image 20 Aurora australis Photo: NASA/ISS Expedition 23 crew The aurora australis, as seen from the International Space Station. Aurorae are natural light displays in the sky caused by the collision of energetic charged particles with atoms in the high altitude thermosphere. The particles originate in the magnetosphere and solar wind and, on Earth, are directed by Earth's magnetic field into the atmosphere. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Aurora_Australis_From_ISS.JPG/120px-Aurora_Australis_From_ISS.JPG" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Aurora_Australis_From_ISS.JPG/180px-Aurora_Australis_From_ISS.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Aurora_Australis_From_ISS.JPG/240px-Aurora_Australis_From_ISS.JPG 2x" data-file-width="4256" data-file-height="2832" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 20</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Aurora_(astronomy)" class="mw-redirect" title="Aurora (astronomy)">Aurora australis</a></span></div><span style="font-size:85%;">Photo: NASA/ISS <a href="/wiki/Expedition_23" title="Expedition 23">Expedition 23</a> crew</span></div><div style="margin:0.5em 0;">The <b><a href="/wiki/Aurora_(astronomy)" class="mw-redirect" title="Aurora (astronomy)">aurora australis</a></b>, as seen from the <a href="/wiki/International_Space_Station" title="International Space Station">International Space Station</a>. Aurorae are natural light displays in the sky caused by the collision of energetic charged particles with atoms in the high altitude <a href="/wiki/Thermosphere" title="Thermosphere">thermosphere</a>. The particles originate in the <a href="/wiki/Magnetosphere" title="Magnetosphere">magnetosphere</a> and <a href="/wiki/Solar_wind" title="Solar wind">solar wind</a> and, on Earth, are directed by <a href="/wiki/Earth%27s_magnetic_field" title="Earth's magnetic field">Earth's magnetic field</a> into the atmosphere.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Iapetus_mountains_Larger.jpg" class="mw-file-description" title="Image 21 Iapetus Photo credit: Cassini orbiter A close-up of 10 km (6.2 mi) high mountains within the equatorial ridge on Saturn's moon Iapetus, photographed by the Cassini orbiter. Above the middle of the image can be seen a place where an impact has exposed the bright ice beneath the dark overlying material. The image was taken on September 10, 2007, with the Cassini spacecraft narrow-angle camera at a distance of approximately 3,870 km (2,400 mi) from Iapetus. More selected pictures"><img alt="Image 21 Iapetus Photo credit: Cassini orbiter A close-up of 10 km (6.2 mi) high mountains within the equatorial ridge on Saturn's moon Iapetus, photographed by the Cassini orbiter. Above the middle of the image can be seen a place where an impact has exposed the bright ice beneath the dark overlying material. The image was taken on September 10, 2007, with the Cassini spacecraft narrow-angle camera at a distance of approximately 3,870 km (2,400 mi) from Iapetus. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Iapetus_mountains_Larger.jpg/120px-Iapetus_mountains_Larger.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Iapetus_mountains_Larger.jpg/180px-Iapetus_mountains_Larger.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Iapetus_mountains_Larger.jpg/240px-Iapetus_mountains_Larger.jpg 2x" data-file-width="1020" data-file-height="1020" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 21</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Iapetus_(moon)" title="Iapetus (moon)">Iapetus</a></span></div><span style="font-size:85%;">Photo credit: <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens"><i>Cassini</i> orbiter</a></span></div><div style="margin:0.5em 0;">A close-up of 10 km (6.2 mi) high mountains within the <a href="/wiki/Equatorial_ridge" title="Equatorial ridge">equatorial ridge</a> on <a href="/wiki/Saturn" title="Saturn">Saturn</a>'s moon <b><a href="/wiki/Iapetus_(moon)" title="Iapetus (moon)">Iapetus</a></b>, photographed by the <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens"><i>Cassini</i> orbiter</a>. Above the middle of the image can be seen a place where an impact has exposed the bright <a href="/wiki/Ice" title="Ice">ice</a> beneath the dark overlying material. The image was taken on September 10, 2007, with the <i>Cassini</i> spacecraft narrow-angle camera at a distance of approximately 3,870 km (2,400 mi) from Iapetus.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Mercury_transit_2.jpg" class="mw-file-description" title="Image 22 Transit of Mercury Photo: Mila Zinkova The transit of Mercury across the face of the Sun that took place in November 2006. Mercury appears as a black speck in the Sun's lower center-right region; the black areas on the left and right edges are sunspots. The transit was first recorded by French astronomer Pierre Gassendi on November 7, 1631. Transits of Mercury take place in May or November, at intervals of 7, 13, or 33 years, with the next one scheduled to appear in May 2016. More selected pictures"><img alt="Image 22 Transit of Mercury Photo: Mila Zinkova The transit of Mercury across the face of the Sun that took place in November 2006. Mercury appears as a black speck in the Sun's lower center-right region; the black areas on the left and right edges are sunspots. The transit was first recorded by French astronomer Pierre Gassendi on November 7, 1631. Transits of Mercury take place in May or November, at intervals of 7, 13, or 33 years, with the next one scheduled to appear in May 2016. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Mercury_transit_2.jpg/120px-Mercury_transit_2.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Mercury_transit_2.jpg/180px-Mercury_transit_2.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/Mercury_transit_2.jpg/240px-Mercury_transit_2.jpg 2x" data-file-width="2000" data-file-height="2000" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 22</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Transit_of_Mercury" title="Transit of Mercury">Transit of Mercury</a></span></div><span style="font-size:85%;">Photo: <a href="/wiki/User:Mbz1" title="User:Mbz1">Mila Zinkova</a></span></div><div style="margin:0.5em 0;">The <b><a href="/wiki/Transit_of_Mercury" title="Transit of Mercury">transit of Mercury</a></b> across the face of the Sun that took place in <span class="nowrap">November 2006</span>. <a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a> appears as a black speck in the Sun's lower center-right region; the black areas on the left and right edges are <a href="/wiki/Sunspot" title="Sunspot">sunspots</a>. The transit was first recorded by French astronomer <a href="/wiki/Pierre_Gassendi" title="Pierre Gassendi">Pierre Gassendi</a> on November 7, 1631. Transits of Mercury take place in May or November, at intervals of 7, 13, or 33 years, with the next one scheduled to appear in <span class="nowrap">May 2016</span>.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:SDO%27s_Ultra-high_Definition_View_of_2012_Venus_Transit_(304_Angstrom_Full_Disc_02).jpg" class="mw-file-description" title="Image 23 Transit of Venus, 2012 Photo: NASA/SDO A picture of the 2012 transit of Venus by the Solar Dynamics Observatory, from 36,000 km (22,000 mi) above the Earth. A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and Earth. It is one of the rarest predictable astronomical phenomena and happens in pairs eight years apart that are separated from each other by 105 or 121 years. The last transit before 2012 was in 2004, and the next pair of transits will occur in 2117 and 2125. More selected pictures"><img alt="Image 23 Transit of Venus, 2012 Photo: NASA/SDO A picture of the 2012 transit of Venus by the Solar Dynamics Observatory, from 36,000 km (22,000 mi) above the Earth. A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and Earth. It is one of the rarest predictable astronomical phenomena and happens in pairs eight years apart that are separated from each other by 105 or 121 years. The last transit before 2012 was in 2004, and the next pair of transits will occur in 2117 and 2125. More selected pictures" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/SDO%27s_Ultra-high_Definition_View_of_2012_Venus_Transit_%28304_Angstrom_Full_Disc_02%29.jpg/120px-SDO%27s_Ultra-high_Definition_View_of_2012_Venus_Transit_%28304_Angstrom_Full_Disc_02%29.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/SDO%27s_Ultra-high_Definition_View_of_2012_Venus_Transit_%28304_Angstrom_Full_Disc_02%29.jpg/180px-SDO%27s_Ultra-high_Definition_View_of_2012_Venus_Transit_%28304_Angstrom_Full_Disc_02%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/SDO%27s_Ultra-high_Definition_View_of_2012_Venus_Transit_%28304_Angstrom_Full_Disc_02%29.jpg/240px-SDO%27s_Ultra-high_Definition_View_of_2012_Venus_Transit_%28304_Angstrom_Full_Disc_02%29.jpg 2x" data-file-width="4096" data-file-height="4096" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 23</span></span><div class="center" style="margin: 0 0.25em 0.85em;"><div><span style="font-size:120%"><a href="/wiki/Transit_of_Venus,_2012" class="mw-redirect" title="Transit of Venus, 2012">Transit of Venus, 2012</a></span></div><span style="font-size:85%;">Photo: <a href="/wiki/NASA" title="NASA">NASA</a>/<a href="/wiki/Solar_Dynamics_Observatory" title="Solar Dynamics Observatory">SDO</a></span></div><div style="margin:0.5em 0;">A picture of the <b><a href="/wiki/Transit_of_Venus,_2012" class="mw-redirect" title="Transit of Venus, 2012">2012 transit of Venus</a></b> by the <a href="/wiki/Solar_Dynamics_Observatory" title="Solar Dynamics Observatory">Solar Dynamics Observatory</a>, from 36,000 km (22,000 mi) above the Earth. A <a href="/wiki/Transit_of_Venus" title="Transit of Venus">transit of Venus</a> across the <a href="/wiki/Sun" title="Sun">Sun</a> takes place when the <a href="/wiki/Planet" title="Planet">planet</a> <a href="/wiki/Venus" title="Venus">Venus</a> passes directly between the Sun and <a href="/wiki/Earth" title="Earth">Earth</a>. It is one of the rarest predictable astronomical phenomena and happens in pairs eight years apart that are separated from each other by 105 or 121 years. The last transit before 2012 was in <a href="/wiki/Transit_of_Venus,_2004" class="mw-redirect" title="Transit of Venus, 2004">2004</a>, and the next pair of transits will occur in 2117 and 2125.</div><div class="noprint" style="margin-top:0.5em; font-weight:bold; width:100%; text-align:right;"><a href="/wiki/Portal:Solar_System/Selected_picture" title="Portal:Solar System/Selected picture">More selected pictures</a></div></div> </li> </ul></div> <div style="clear:both;" class=""></div></div> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="General_imagesThe_following_are_images_from_various_Solar_System-related_articles_on_Wikipedia." style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">General images<br /><div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><small><b>The following are images from various Solar System-related articles on Wikipedia.</b></small></div></h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1021884966"><div class="randomSlideshow-container" style="max-width:100%; margin:-4em auto;"><div class="nomobile"></div><ul class="gallery mw-gallery-slideshow switcher-container"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Comet_Hale-Bopp_1995O1.jpg" class="mw-file-description" title="Image 1Comet Hale–Bopp seen in 1997 (from Solar System)"><img alt="Image 1Comet Hale–Bopp seen in 1997 (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Comet_Hale-Bopp_1995O1.jpg/120px-Comet_Hale-Bopp_1995O1.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Comet_Hale-Bopp_1995O1.jpg/180px-Comet_Hale-Bopp_1995O1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Comet_Hale-Bopp_1995O1.jpg/240px-Comet_Hale-Bopp_1995O1.jpg 2x" data-file-width="1500" data-file-height="1500" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 1</span></span><a href="/wiki/Comet_Hale%E2%80%93Bopp" title="Comet Hale–Bopp">Comet Hale–Bopp</a> seen in 1997 (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Voyager_2_Neptune_and_Triton.jpg" class="mw-file-description" title="Image 2Neptune and its moon Triton, taken by Voyager 2. Triton's orbit will eventually take it within Neptune's Roche limit, tearing it apart and possibly forming a new ring system. (from Formation and evolution of the Solar System)"><img alt="Image 2Neptune and its moon Triton, taken by Voyager 2. Triton's orbit will eventually take it within Neptune's Roche limit, tearing it apart and possibly forming a new ring system. (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Voyager_2_Neptune_and_Triton.jpg/120px-Voyager_2_Neptune_and_Triton.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Voyager_2_Neptune_and_Triton.jpg/180px-Voyager_2_Neptune_and_Triton.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Voyager_2_Neptune_and_Triton.jpg/240px-Voyager_2_Neptune_and_Triton.jpg 2x" data-file-width="800" data-file-height="600" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 2</span></span>Neptune and its moon <a href="/wiki/Triton_(moon)" title="Triton (moon)">Triton</a>, taken by <i><a href="/wiki/Voyager_2" title="Voyager 2">Voyager 2</a></i>. Triton's orbit will eventually take it within Neptune's <a href="/wiki/Roche_limit" title="Roche limit">Roche limit</a>, tearing it apart and possibly forming a new ring system. (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Interstellar_medium_annotated.jpg" class="mw-file-description" title="Image 3The Solar System (left) within the interstellar medium, with the different regions and their distances on a logarithmic scale (from Solar System)"><img alt="Image 3The Solar System (left) within the interstellar medium, with the different regions and their distances on a logarithmic scale (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Interstellar_medium_annotated.jpg/120px-Interstellar_medium_annotated.jpg" decoding="async" width="120" height="51" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Interstellar_medium_annotated.jpg/180px-Interstellar_medium_annotated.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Interstellar_medium_annotated.jpg/240px-Interstellar_medium_annotated.jpg 2x" data-file-width="10800" data-file-height="4590" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 3</span></span>The Solar System (left) within the <a href="/wiki/Interstellar_medium" title="Interstellar medium">interstellar medium</a>, with the different regions and their distances on a <a href="/wiki/Logarithmic_scale" title="Logarithmic scale">logarithmic scale</a> (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Solar_system_orrery_outer_planets.gif" class="mw-file-description" title="Image 4Animations of the Solar System's outer planets orbiting. This animation is 100 times faster than the inner planet animation. (from Solar System)"><img alt="Image 4Animations of the Solar System's outer planets orbiting. This animation is 100 times faster than the inner planet animation. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Solar_system_orrery_outer_planets.gif/120px-Solar_system_orrery_outer_planets.gif" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Solar_system_orrery_outer_planets.gif/180px-Solar_system_orrery_outer_planets.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Solar_system_orrery_outer_planets.gif/240px-Solar_system_orrery_outer_planets.gif 2x" data-file-width="800" data-file-height="600" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 4</span></span>Animations of the Solar System's <a href="/wiki/Outer_planet" class="mw-redirect" title="Outer planet">outer planets</a> orbiting. This animation is 100 times faster than the inner planet animation. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Barringer_Crater_aerial_photo_by_USGS.jpg" class="mw-file-description" title="Image 5Meteor Crater in Arizona. Created 50,000 years ago by an impactor about 50 metres (160 ft) across, it shows that the accretion of the Solar System is not over. (from Formation and evolution of the Solar System)"><img alt="Image 5Meteor Crater in Arizona. Created 50,000 years ago by an impactor about 50 metres (160 ft) across, it shows that the accretion of the Solar System is not over. (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Barringer_Crater_aerial_photo_by_USGS.jpg/120px-Barringer_Crater_aerial_photo_by_USGS.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Barringer_Crater_aerial_photo_by_USGS.jpg/180px-Barringer_Crater_aerial_photo_by_USGS.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Barringer_Crater_aerial_photo_by_USGS.jpg/240px-Barringer_Crater_aerial_photo_by_USGS.jpg 2x" data-file-width="2400" data-file-height="1605" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 5</span></span><a href="/wiki/Meteor_Crater" title="Meteor Crater">Meteor Crater</a> in Arizona. Created 50,000 years ago by an impactor about 50 metres (160 ft) across, it shows that the accretion of the Solar System is not over. (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Kuiper_belt_plot_objects_of_outer_solar_system.png" class="mw-file-description" title="Image 6Plot of objects around the Kuiper belt and other asteroid populations. J, S, U and N denotes Jupiter, Saturn, Uranus and Neptune. (from Solar System)"><img alt="Image 6Plot of objects around the Kuiper belt and other asteroid populations. J, S, U and N denotes Jupiter, Saturn, Uranus and Neptune. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Kuiper_belt_plot_objects_of_outer_solar_system.png/120px-Kuiper_belt_plot_objects_of_outer_solar_system.png" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Kuiper_belt_plot_objects_of_outer_solar_system.png/180px-Kuiper_belt_plot_objects_of_outer_solar_system.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Kuiper_belt_plot_objects_of_outer_solar_system.png/240px-Kuiper_belt_plot_objects_of_outer_solar_system.png 2x" data-file-width="1024" data-file-height="1024" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 6</span></span>Plot of objects around the <a href="/wiki/Kuiper_belt" title="Kuiper belt">Kuiper belt</a> and other asteroid populations. J, S, U and N denotes Jupiter, Saturn, Uranus and Neptune. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Distant_object_orbits_%2B_Planet_Nine.png" class="mw-file-description" title="Image 7The current orbits of Sedna, 2012 VP113, Leleākūhonua (pink), and other very distant objects (red, brown and cyan) along with the predicted orbit of the hypothetical Planet Nine (dark blue) (from Solar System)"><img alt="Image 7The current orbits of Sedna, 2012 VP113, Leleākūhonua (pink), and other very distant objects (red, brown and cyan) along with the predicted orbit of the hypothetical Planet Nine (dark blue) (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Distant_object_orbits_%2B_Planet_Nine.png/120px-Distant_object_orbits_%2B_Planet_Nine.png" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Distant_object_orbits_%2B_Planet_Nine.png/180px-Distant_object_orbits_%2B_Planet_Nine.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Distant_object_orbits_%2B_Planet_Nine.png/240px-Distant_object_orbits_%2B_Planet_Nine.png 2x" data-file-width="5850" data-file-height="3900" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 7</span></span>The current orbits of <a href="/wiki/90377_Sedna" class="mw-redirect" title="90377 Sedna">Sedna</a>, <a href="/wiki/2012_VP113" title="2012 VP113">2012 VP113</a>, <a href="/wiki/541132_Lele%C4%81k%C5%ABhonua" title="541132 Leleākūhonua">Leleākūhonua</a> (pink), and other very <a href="/wiki/ETNO" class="mw-redirect" title="ETNO">distant objects</a> (red, brown and cyan) along with the predicted orbit of the hypothetical <a href="/wiki/Planet_Nine" title="Planet Nine">Planet Nine</a> (dark blue) (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Sun_red_giant.svg" class="mw-file-description" title="Image 8Relative size of the Sun as it is now (inset) compared to its estimated future size as a red giant (from Formation and evolution of the Solar System)"><img alt="Image 8Relative size of the Sun as it is now (inset) compared to its estimated future size as a red giant (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sun_red_giant.svg/120px-Sun_red_giant.svg.png" decoding="async" width="120" height="106" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sun_red_giant.svg/180px-Sun_red_giant.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sun_red_giant.svg/240px-Sun_red_giant.svg.png 2x" data-file-width="728" data-file-height="646" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 8</span></span>Relative size of the Sun as it is now (inset) compared to its estimated future size as a red giant (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Artist%27s_concept_of_collision_at_HD_172555.jpg" class="mw-file-description" title="Image 9Artist's conception of the giant impact thought to have formed the Moon (from Formation and evolution of the Solar System)"><img alt="Image 9Artist's conception of the giant impact thought to have formed the Moon (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Artist%27s_concept_of_collision_at_HD_172555.jpg/120px-Artist%27s_concept_of_collision_at_HD_172555.jpg" decoding="async" width="120" height="96" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Artist%27s_concept_of_collision_at_HD_172555.jpg/180px-Artist%27s_concept_of_collision_at_HD_172555.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Artist%27s_concept_of_collision_at_HD_172555.jpg/240px-Artist%27s_concept_of_collision_at_HD_172555.jpg 2x" data-file-width="3000" data-file-height="2400" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 9</span></span>Artist's conception of the <a href="/wiki/Giant_impact_hypothesis" class="mw-redirect" title="Giant impact hypothesis">giant impact</a> thought to have formed the <a href="/wiki/Moon" title="Moon">Moon</a> (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Apparent_retrograde_motion_of_Mars_in_2003.gif" class="mw-file-description" title="Image 10The motion of 'lights' moving across the sky is the basis of the classical definition of planets: wandering stars. (from Solar System)"><img alt="Image 10The motion of 'lights' moving across the sky is the basis of the classical definition of planets: wandering stars. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Apparent_retrograde_motion_of_Mars_in_2003.gif/120px-Apparent_retrograde_motion_of_Mars_in_2003.gif" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Apparent_retrograde_motion_of_Mars_in_2003.gif/180px-Apparent_retrograde_motion_of_Mars_in_2003.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Apparent_retrograde_motion_of_Mars_in_2003.gif/240px-Apparent_retrograde_motion_of_Mars_in_2003.gif 2x" data-file-width="400" data-file-height="400" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 10</span></span>The motion of 'lights' moving across the sky is the basis of the classical definition of planets: wandering stars. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:TheKuiperBelt_classes-en.svg" class="mw-file-description" title="Image 11Orbit classification of Kuiper belt objects. Some clusters that is subjected to orbital resonance are marked. (from Solar System)"><img alt="Image 11Orbit classification of Kuiper belt objects. Some clusters that is subjected to orbital resonance are marked. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/TheKuiperBelt_classes-en.svg/120px-TheKuiperBelt_classes-en.svg.png" decoding="async" width="120" height="96" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/TheKuiperBelt_classes-en.svg/180px-TheKuiperBelt_classes-en.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ed/TheKuiperBelt_classes-en.svg/240px-TheKuiperBelt_classes-en.svg.png 2x" data-file-width="400" data-file-height="320" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 11</span></span>Orbit classification of Kuiper belt objects. Some clusters that is subjected to <a href="/wiki/Orbital_resonance" title="Orbital resonance">orbital resonance</a> are marked. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Solar_System_distance_to_scale.svg" class="mw-file-description" title="Image 12To-scale diagram of distance between planets, with the white bar showing orbital variations. The size of the planets is not to scale. (from Solar System)"><img alt="Image 12To-scale diagram of distance between planets, with the white bar showing orbital variations. The size of the planets is not to scale. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Solar_System_distance_to_scale.svg/120px-Solar_System_distance_to_scale.svg.png" decoding="async" width="120" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Solar_System_distance_to_scale.svg/180px-Solar_System_distance_to_scale.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/df/Solar_System_distance_to_scale.svg/240px-Solar_System_distance_to_scale.svg.png 2x" data-file-width="1169" data-file-height="106" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 12</span></span>To-scale diagram of distance between planets, with the white bar showing orbital variations. The size of the planets is not to scale. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Soot-line1.jpg" class="mw-file-description" title="Image 13Diagram of the early Solar System's protoplanetary disk, out of which Earth and other Solar System bodies formed (from Solar System)"><img alt="Image 13Diagram of the early Solar System's protoplanetary disk, out of which Earth and other Solar System bodies formed (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Soot-line1.jpg/120px-Soot-line1.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Soot-line1.jpg/180px-Soot-line1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Soot-line1.jpg/240px-Soot-line1.jpg 2x" data-file-width="1960" data-file-height="1304" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 13</span></span>Diagram of the early Solar System's <a href="/wiki/Protoplanetary_disk" title="Protoplanetary disk">protoplanetary disk</a>, out of which Earth and other Solar System bodies formed (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lhborbits.png" class="mw-file-description" title="Image 14Simulation showing outer planets and Kuiper belt: a) Before Jupiter/Saturn 2:1 resonance b) Scattering of Kuiper belt objects into the Solar System after the orbital shift of Neptune c) After ejection of Kuiper belt bodies by Jupiter   Orbit of Jupiter   Orbit of Saturn   Orbit of Uranus   Orbit of Neptune (from Formation and evolution of the Solar System)"><img alt="Image 14Simulation showing outer planets and Kuiper belt: a) Before Jupiter/Saturn 2:1 resonance b) Scattering of Kuiper belt objects into the Solar System after the orbital shift of Neptune c) After ejection of Kuiper belt bodies by Jupiter   Orbit of Jupiter   Orbit of Saturn   Orbit of Uranus   Orbit of Neptune (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Lhborbits.png/120px-Lhborbits.png" decoding="async" width="120" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Lhborbits.png/180px-Lhborbits.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Lhborbits.png/240px-Lhborbits.png 2x" data-file-width="1360" data-file-height="454" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 14</span></span>Simulation showing outer planets and Kuiper belt:<br />a) Before Jupiter/Saturn 2:1 resonance<br />b) Scattering of Kuiper belt objects into the Solar System after the orbital shift of Neptune<br />c) After ejection of Kuiper belt bodies by Jupiter<br /><style data-mw-deduplicate="TemplateStyles:r981673959">.mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{}</style><div class="legend"><span class="legend-line mw-no-invert" style="display: inline-block; vertical-align: middle; width: 1.67em; height: 0; border-style: none; border-top: 2px dotted black;border-top:2px solid lime;"> </span> Orbit of Jupiter</div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r981673959"><div class="legend"><span class="legend-line mw-no-invert" style="display: inline-block; vertical-align: middle; width: 1.67em; height: 0; border-style: none; border-top: 2px dotted black;border-top:2px solid goldenrod;"> </span> Orbit of Saturn</div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r981673959"><div class="legend"><span class="legend-line mw-no-invert" style="display: inline-block; vertical-align: middle; width: 1.67em; height: 0; border-style: none; border-top: 2px dotted black;border-top:2px solid cyan;"> </span> Orbit of Uranus</div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r981673959"><div class="legend"><span class="legend-line mw-no-invert" style="display: inline-block; vertical-align: middle; width: 1.67em; height: 0; border-style: none; border-top: 2px dotted black;border-top:2px solid blue;"> </span> Orbit of Neptune</div> (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Milky_Way_Spiral_Arms_EN.svg" class="mw-file-description" title="Image 15Location of the Solar System within the Milky Way (from Formation and evolution of the Solar System)"><img alt="Image 15Location of the Solar System within the Milky Way (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/80/Milky_Way_Spiral_Arms_EN.svg/120px-Milky_Way_Spiral_Arms_EN.svg.png" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/80/Milky_Way_Spiral_Arms_EN.svg/180px-Milky_Way_Spiral_Arms_EN.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/80/Milky_Way_Spiral_Arms_EN.svg/240px-Milky_Way_Spiral_Arms_EN.svg.png 2x" data-file-width="450" data-file-height="450" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 15</span></span>Location of the Solar System within the Milky Way (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_Sun_in_white_light.jpg" class="mw-file-description" title="Image 16The Sun in true white color (from Solar System)"><img alt="White ball of plasma" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/The_Sun_in_white_light.jpg/120px-The_Sun_in_white_light.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/The_Sun_in_white_light.jpg/180px-The_Sun_in_white_light.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/83/The_Sun_in_white_light.jpg/240px-The_Sun_in_white_light.jpg 2x" data-file-width="3379" data-file-height="3379" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 16</span></span>The Sun in true white color (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Inner_solar_system_objects_top_view_for_wiki.png" class="mw-file-description" title="Image 17Overview of the inner Solar System up to Jupiter's orbit (from Solar System)"><img alt="Asteroid populations depicted: near-Earth asteroids, Earth trojans, Mars trojans, main asteroid belt, Jupiter trojans, Jupiter Greeks, Jupiter Hilda's triangle" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/Inner_solar_system_objects_top_view_for_wiki.png/120px-Inner_solar_system_objects_top_view_for_wiki.png" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/Inner_solar_system_objects_top_view_for_wiki.png/180px-Inner_solar_system_objects_top_view_for_wiki.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/11/Inner_solar_system_objects_top_view_for_wiki.png/240px-Inner_solar_system_objects_top_view_for_wiki.png 2x" data-file-width="600" data-file-height="600" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 17</span></span>Overview of the inner Solar System up to Jupiter's orbit (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_Solar_System,_with_the_orbits_of_5_remarkable_comets._LOC_2013593161_(cropped).jpg" class="mw-file-description" title="Image 18Solar System diagram made by Emanuel Bowen in 1747. At that time, Uranus, Neptune, nor the asteroid belts have been discovered yet. Orbits of planets are drawn to scale, but the orbits of moons and the size of bodies are not. (from Solar System)"><img alt="Image 18Solar System diagram made by Emanuel Bowen in 1747. At that time, Uranus, Neptune, nor the asteroid belts have been discovered yet. Orbits of planets are drawn to scale, but the orbits of moons and the size of bodies are not. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/The_Solar_System%2C_with_the_orbits_of_5_remarkable_comets._LOC_2013593161_%28cropped%29.jpg/115px-The_Solar_System%2C_with_the_orbits_of_5_remarkable_comets._LOC_2013593161_%28cropped%29.jpg" decoding="async" width="115" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/The_Solar_System%2C_with_the_orbits_of_5_remarkable_comets._LOC_2013593161_%28cropped%29.jpg/173px-The_Solar_System%2C_with_the_orbits_of_5_remarkable_comets._LOC_2013593161_%28cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/The_Solar_System%2C_with_the_orbits_of_5_remarkable_comets._LOC_2013593161_%28cropped%29.jpg/231px-The_Solar_System%2C_with_the_orbits_of_5_remarkable_comets._LOC_2013593161_%28cropped%29.jpg 2x" data-file-width="3491" data-file-height="3629" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 18</span></span>Solar System diagram made by <a href="/wiki/Emanuel_Bowen" title="Emanuel Bowen">Emanuel Bowen</a> in 1747. At that time, Uranus, Neptune, nor the asteroid belts have been discovered yet. Orbits of planets are drawn to scale, but the orbits of moons and the size of bodies are not. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:M42proplyds.jpg" class="mw-file-description" title="Image 19Hubble image of protoplanetary discs in the Orion Nebula, a light-years-wide stellar nursery probably very similar to the primordial nebula from which the Sun formed (from Formation and evolution of the Solar System)"><img alt="Image 19Hubble image of protoplanetary discs in the Orion Nebula, a light-years-wide stellar nursery probably very similar to the primordial nebula from which the Sun formed (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/M42proplyds.jpg/120px-M42proplyds.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/M42proplyds.jpg/180px-M42proplyds.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/da/M42proplyds.jpg/240px-M42proplyds.jpg 2x" data-file-width="510" data-file-height="381" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 19</span></span>Hubble image of <a href="/wiki/Protoplanetary_disk" title="Protoplanetary disk">protoplanetary discs</a> in the <a href="/wiki/Orion_Nebula" title="Orion Nebula">Orion Nebula</a>, a light-years-wide <a href="/wiki/Stellar_nursery" class="mw-redirect" title="Stellar nursery">stellar nursery</a> probably very similar to the primordial nebula from which the Sun formed (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:M57_The_Ring_Nebula.JPG" class="mw-file-description" title="Image 20The Ring nebula, a planetary nebula similar to what the Sun will become (from Formation and evolution of the Solar System)"><img alt="Image 20The Ring nebula, a planetary nebula similar to what the Sun will become (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/M57_The_Ring_Nebula.JPG/117px-M57_The_Ring_Nebula.JPG" decoding="async" width="117" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/M57_The_Ring_Nebula.JPG/176px-M57_The_Ring_Nebula.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/13/M57_The_Ring_Nebula.JPG/235px-M57_The_Ring_Nebula.JPG 2x" data-file-width="1215" data-file-height="1241" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 20</span></span>The <a href="/wiki/Ring_nebula" class="mw-redirect" title="Ring nebula">Ring nebula</a>, a planetary nebula similar to what the Sun will become (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Diagram_of_different_habitable_zone_regions_by_Chester_Harman.jpg" class="mw-file-description" title="Image 21Comparison of the habitable zones for different stellar temperatures, with a sample of known exoplanets plus the Earth, Mars, and Venus (from Solar System)"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Diagram_of_different_habitable_zone_regions_by_Chester_Harman.jpg/120px-Diagram_of_different_habitable_zone_regions_by_Chester_Harman.jpg" decoding="async" width="120" height="70" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Diagram_of_different_habitable_zone_regions_by_Chester_Harman.jpg/180px-Diagram_of_different_habitable_zone_regions_by_Chester_Harman.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Diagram_of_different_habitable_zone_regions_by_Chester_Harman.jpg/240px-Diagram_of_different_habitable_zone_regions_by_Chester_Harman.jpg 2x" data-file-width="3302" data-file-height="1931" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 21</span></span>Comparison of the <a href="/wiki/Habitable_zone" title="Habitable zone">habitable zones</a> for different stellar temperatures, with a sample of known exoplanets plus the Earth, Mars, and Venus (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_Mysterious_Case_of_the_Disappearing_Dust.jpg" class="mw-file-description" title="Image 22Artist's conception of a protoplanetary disk (from Formation and evolution of the Solar System)"><img alt="Image 22Artist's conception of a protoplanetary disk (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/The_Mysterious_Case_of_the_Disappearing_Dust.jpg/120px-The_Mysterious_Case_of_the_Disappearing_Dust.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/The_Mysterious_Case_of_the_Disappearing_Dust.jpg/180px-The_Mysterious_Case_of_the_Disappearing_Dust.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2d/The_Mysterious_Case_of_the_Disappearing_Dust.jpg/240px-The_Mysterious_Case_of_the_Disappearing_Dust.jpg 2x" data-file-width="3200" data-file-height="2400" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 22</span></span>Artist's conception of a <a href="/wiki/Protoplanetary_disk" title="Protoplanetary disk">protoplanetary disk</a> (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Sun_red_giant.svg" class="mw-file-description" title="Image 23The current Sun compared to its peak size in the red-giant phase (from Solar System)"><img alt="Image 23The current Sun compared to its peak size in the red-giant phase (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sun_red_giant.svg/120px-Sun_red_giant.svg.png" decoding="async" width="120" height="106" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sun_red_giant.svg/180px-Sun_red_giant.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sun_red_giant.svg/240px-Sun_red_giant.svg.png 2x" data-file-width="728" data-file-height="646" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 23</span></span>The current Sun compared to its peak size in the red-giant phase (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Terrestrial_planet_sizes_3.jpg" class="mw-file-description" title="Image 24The four terrestrial planets Mercury, Venus, Earth and Mars (from Solar System)"><img alt="Venus and Earth about the same size, Mars is about 0.55 times as big and Mercury is about 0.4 times as big" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Terrestrial_planet_sizes_3.jpg/120px-Terrestrial_planet_sizes_3.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Terrestrial_planet_sizes_3.jpg/180px-Terrestrial_planet_sizes_3.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Terrestrial_planet_sizes_3.jpg/240px-Terrestrial_planet_sizes_3.jpg 2x" data-file-width="3215" data-file-height="3215" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 24</span></span>The four terrestrial planets <a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a>, <a href="/wiki/Venus" title="Venus">Venus</a>, <a href="/wiki/Earth" title="Earth">Earth</a> and <a href="/wiki/Mars" title="Mars">Mars</a> (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Meteor_shower_in_the_Chilean_Desert_(annotated_and_cropped).jpg" class="mw-file-description" title="Image 25The planets, zodiacal light and meteor shower (top left of image) (from Solar System)"><img alt="Image 25The planets, zodiacal light and meteor shower (top left of image) (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Meteor_shower_in_the_Chilean_Desert_%28annotated_and_cropped%29.jpg/120px-Meteor_shower_in_the_Chilean_Desert_%28annotated_and_cropped%29.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Meteor_shower_in_the_Chilean_Desert_%28annotated_and_cropped%29.jpg/180px-Meteor_shower_in_the_Chilean_Desert_%28annotated_and_cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Meteor_shower_in_the_Chilean_Desert_%28annotated_and_cropped%29.jpg/240px-Meteor_shower_in_the_Chilean_Desert_%28annotated_and_cropped%29.jpg 2x" data-file-width="7500" data-file-height="7500" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 25</span></span>The planets, zodiacal light and meteor shower (top left of image) (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Kuiper_belt_-_Oort_cloud-en.svg" class="mw-file-description" title="Image 26An artist's impression of the Oort cloud, a region still well within the sphere of influence of the Solar System, including a depiction of the much further inside Kuiper belt (inset); the sizes of objects are over-scaled for visibility. (from Solar System)"><img alt="Image 26An artist's impression of the Oort cloud, a region still well within the sphere of influence of the Solar System, including a depiction of the much further inside Kuiper belt (inset); the sizes of objects are over-scaled for visibility. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Kuiper_belt_-_Oort_cloud-en.svg/120px-Kuiper_belt_-_Oort_cloud-en.svg.png" decoding="async" width="120" height="103" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Kuiper_belt_-_Oort_cloud-en.svg/180px-Kuiper_belt_-_Oort_cloud-en.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Kuiper_belt_-_Oort_cloud-en.svg/240px-Kuiper_belt_-_Oort_cloud-en.svg.png 2x" data-file-width="512" data-file-height="439" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 26</span></span>An <a href="/wiki/Artist%27s_impression" title="Artist's impression">artist's impression</a> of the <a href="/wiki/Oort_cloud" title="Oort cloud">Oort cloud</a>, a region still well within the <a href="/wiki/Sphere_of_influence_(astrodynamics)" title="Sphere of influence (astrodynamics)">sphere of influence</a> of the Solar System, including a depiction of the much further inside <a href="/wiki/Kuiper_belt" title="Kuiper belt">Kuiper belt</a> (inset); the sizes of objects are over-scaled for visibility. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Solar_system_orrery_inner_planets.gif" class="mw-file-description" title="Image 27Animations of the Solar System's inner planets orbiting. Each frame represents 2 days of motion. (from Solar System)"><img alt="Image 27Animations of the Solar System's inner planets orbiting. Each frame represents 2 days of motion. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Solar_system_orrery_inner_planets.gif/120px-Solar_system_orrery_inner_planets.gif" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Solar_system_orrery_inner_planets.gif/180px-Solar_system_orrery_inner_planets.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Solar_system_orrery_inner_planets.gif/240px-Solar_system_orrery_inner_planets.gif 2x" data-file-width="800" data-file-height="600" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 27</span></span>Animations of the Solar System's <a href="/wiki/Inner_planet" class="mw-redirect" title="Inner planet">inner planets</a> orbiting. Each frame represents 2 days of motion. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Pierre-Simon_Laplace.jpg" class="mw-file-description" title="Image 28Pierre-Simon Laplace, one of the originators of the nebular hypothesis (from Formation and evolution of the Solar System)"><img alt="Image 28Pierre-Simon Laplace, one of the originators of the nebular hypothesis (from Formation and evolution of the Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Pierre-Simon_Laplace.jpg/110px-Pierre-Simon_Laplace.jpg" decoding="async" width="110" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Pierre-Simon_Laplace.jpg/165px-Pierre-Simon_Laplace.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Pierre-Simon_Laplace.jpg/220px-Pierre-Simon_Laplace.jpg 2x" data-file-width="550" data-file-height="600" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 28</span></span><a href="/wiki/Pierre-Simon_Laplace" title="Pierre-Simon Laplace">Pierre-Simon Laplace</a>, one of the originators of the nebular hypothesis (from <b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_Local_Interstellar_Cloud_and_neighboring_G-cloud_complex.svg" class="mw-file-description" title="Image 29Diagram of the Local Interstellar Cloud, the G-Cloud and surrounding stars. As of 2022, the precise location of the Solar System in the clouds is an open question in astronomy. (from Solar System)"><img alt="Image 29Diagram of the Local Interstellar Cloud, the G-Cloud and surrounding stars. As of 2022, the precise location of the Solar System in the clouds is an open question in astronomy. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/The_Local_Interstellar_Cloud_and_neighboring_G-cloud_complex.svg/116px-The_Local_Interstellar_Cloud_and_neighboring_G-cloud_complex.svg.png" decoding="async" width="116" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/The_Local_Interstellar_Cloud_and_neighboring_G-cloud_complex.svg/174px-The_Local_Interstellar_Cloud_and_neighboring_G-cloud_complex.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7c/The_Local_Interstellar_Cloud_and_neighboring_G-cloud_complex.svg/231px-The_Local_Interstellar_Cloud_and_neighboring_G-cloud_complex.svg.png 2x" data-file-width="322" data-file-height="334" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 29</span></span>Diagram of the <a href="/wiki/Local_Interstellar_Cloud" title="Local Interstellar Cloud">Local Interstellar Cloud</a>, the <a href="/wiki/G-Cloud" title="G-Cloud">G-Cloud</a> and surrounding stars. As of 2022, the precise location of the Solar System in the clouds is an open question in astronomy. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Magnetosphere_Levels.jpg" class="mw-file-description" title="Image 30Diagram of the Sun's magnetosphere and helioshealth (from Solar System)"><img alt="Image 30Diagram of the Sun's magnetosphere and helioshealth (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Magnetosphere_Levels.jpg/111px-Magnetosphere_Levels.jpg" decoding="async" width="111" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Magnetosphere_Levels.jpg/167px-Magnetosphere_Levels.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Magnetosphere_Levels.jpg/223px-Magnetosphere_Levels.jpg 2x" data-file-width="492" data-file-height="530" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 30</span></span>Diagram of the Sun's magnetosphere and helioshealth (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:TheKuiperBelt_Projections_100AU_Classical_SDO.svg" class="mw-file-description" title="Image 31The orbital eccentricities and inclinations of the scattered disc population compared to the classical and resonant Kuiper belt objects (from Solar System)"><img alt="Image 31The orbital eccentricities and inclinations of the scattered disc population compared to the classical and resonant Kuiper belt objects (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/TheKuiperBelt_Projections_100AU_Classical_SDO.svg/120px-TheKuiperBelt_Projections_100AU_Classical_SDO.svg.png" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/TheKuiperBelt_Projections_100AU_Classical_SDO.svg/180px-TheKuiperBelt_Projections_100AU_Classical_SDO.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/58/TheKuiperBelt_Projections_100AU_Classical_SDO.svg/240px-TheKuiperBelt_Projections_100AU_Classical_SDO.svg.png 2x" data-file-width="480" data-file-height="480" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 31</span></span>The orbital eccentricities and inclinations of the scattered disc population compared to the classical and resonant Kuiper belt objects (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_Four_Largest_Asteroids.jpg" class="mw-file-description" title="Image 32The four largest asteroids: Ceres, Vesta, Pallas, Hygiea. Only Ceres and Vesta have been visited by a spacecraft and thus have a detailed picture. (from Solar System)"><img alt="Image 32The four largest asteroids: Ceres, Vesta, Pallas, Hygiea. Only Ceres and Vesta have been visited by a spacecraft and thus have a detailed picture. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/86/The_Four_Largest_Asteroids.jpg/120px-The_Four_Largest_Asteroids.jpg" decoding="async" width="120" height="56" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/86/The_Four_Largest_Asteroids.jpg/180px-The_Four_Largest_Asteroids.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/86/The_Four_Largest_Asteroids.jpg/240px-The_Four_Largest_Asteroids.jpg 2x" data-file-width="1563" data-file-height="735" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 32</span></span>The four largest asteroids: <a href="/wiki/Ceres_(dwarf_planet)" title="Ceres (dwarf planet)">Ceres</a>, <a href="/wiki/4_Vesta" title="4 Vesta">Vesta</a>, <a href="/wiki/2_Pallas" title="2 Pallas">Pallas</a>, <a href="/wiki/10_Hygiea" title="10 Hygiea">Hygiea</a>. Only Ceres and Vesta have been visited by a spacecraft and thus have a detailed picture. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Milky_Way_side_view.png" class="mw-file-description" title="Image 33Diagram of the Milky Way, with galactic features and the relative position of the Solar System labeled. (from Solar System)"><img alt="Image 33Diagram of the Milky Way, with galactic features and the relative position of the Solar System labeled. (from Solar System)" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Milky_Way_side_view.png/120px-Milky_Way_side_view.png" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Milky_Way_side_view.png/180px-Milky_Way_side_view.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/19/Milky_Way_side_view.png/240px-Milky_Way_side_view.png 2x" data-file-width="4200" data-file-height="4200" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 33</span></span>Diagram of the Milky Way, with galactic features and the relative position of the Solar System labeled. (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px;"><span typeof="mw:File"><a href="/wiki/File:Planet_collage_to_scale_(captioned).jpg" class="mw-file-description" title="Image 34The outer planets Jupiter, Saturn, Uranus and Neptune, compared to the inner planets Earth, Venus, Mars, and Mercury at the bottom right (from Solar System)"><img alt="Jupiter and Saturn is about 2 times bigger than Uranus and Neptune, 10 times bigger than Venus and Earth, 20 times bigger than Mars and 25 times bigger than Mercury" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Planet_collage_to_scale_%28captioned%29.jpg/120px-Planet_collage_to_scale_%28captioned%29.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/Planet_collage_to_scale_%28captioned%29.jpg/180px-Planet_collage_to_scale_%28captioned%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/67/Planet_collage_to_scale_%28captioned%29.jpg/240px-Planet_collage_to_scale_%28captioned%29.jpg 2x" data-file-width="2048" data-file-height="2048" /></a></span></div> <div class="gallerytext"><span class="switcher-label" style="display:none"><span class="randomSlideshow-sr-only">Image 34</span></span>The outer planets <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>, <a href="/wiki/Saturn" title="Saturn">Saturn</a>, <a href="/wiki/Uranus" title="Uranus">Uranus</a> and <a href="/wiki/Neptune" title="Neptune">Neptune</a>, compared to the inner planets Earth, Venus, Mars, and Mercury at the bottom right (from <b><a href="/wiki/Solar_System" title="Solar System">Solar System</a></b>)</div> </li> </ul></div> <div style="clear:both;" class=""></div></div></div><div class="flex-columns-column"><div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Did_you_know_–_show_different_entries" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em"><span id="Did_you_know_.E2.80.93_show_different_entries"></span>Did you know – <span class="noprint plainlinks purgelink"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Portal:Solar_System&action=purge"><span title="Purge this page"><small><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239334494"><span class="tmp-color" style="color:darkblue"><i>show different entries</i></span></small></span></a></span></h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <p><span style="float:right;margin-left:0.5em;"></span> </p> <ul><li>... that <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a> is the only <a href="/wiki/Planet" title="Planet">planet</a> capable of pulling an <b><a href="/wiki/Interstellar_comet" class="mw-redirect" title="Interstellar comet">interstellar comet</a></b> into a <a href="/wiki/Heliocentric" class="mw-redirect" title="Heliocentric">Sun-centered</a> orbit?</li></ul> <ul><li>...that the <b><a href="/wiki/Solar_Sentinels" title="Solar Sentinels">Solar Sentinels</a></b>, a <a href="/wiki/NASA" title="NASA">NASA</a> <a href="/wiki/Spacecraft" title="Spacecraft">spacecraft</a> designed to study the <a href="/wiki/Sun" title="Sun">Sun</a>, will have to survive at distances from the Sun only one-quarter of <a href="/wiki/Earth" title="Earth">Earth</a>'s distance?</li></ul> <ul><li>...that just over 50 kilometres above its surface, the <b><a href="/wiki/Atmosphere_of_Venus" title="Atmosphere of Venus">atmosphere of Venus</a></b> has very similar <a href="/wiki/Pressure" title="Pressure">pressure</a> and <a href="/wiki/Temperature" title="Temperature">temperature</a> as does <a href="/wiki/Earth" title="Earth">Earth</a>, making it the most <a href="/wiki/Atmosphere_of_Earth" title="Atmosphere of Earth">Earth-like</a> area in the <a href="/wiki/Solar_System" title="Solar System">Solar System</a>?</li></ul> <ul><li>...that <a href="/wiki/NASA" title="NASA">NASA</a> conducts field trials, called <b><a href="/wiki/Desert_Research_and_Technology_Studies" title="Desert Research and Technology Studies">Desert RATS</a></b>, for new technologies for <a href="/wiki/Extra-vehicular_activity" class="mw-redirect" title="Extra-vehicular activity">manned exploration</a> of the surface of the <a href="/wiki/Moon" title="Moon">Moon</a>, <a href="/wiki/Mars" title="Mars">Mars</a>, or beyond?</li></ul> <ul><li>...that <a href="/wiki/Ridge" title="Ridge">ridges</a> and <a href="/wiki/Escarpment" title="Escarpment">escarpments</a> in the <b><a href="/wiki/Victoria_quadrangle" title="Victoria quadrangle">Victoria quadrangle</a></b> of the planet <a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a> have been associated with the stresses caused by <a href="/wiki/Tidal_locking" title="Tidal locking">the Sun slowing Mercury's rotation through tidal forces</a>?</li></ul> <ul><li>...that <b><a href="/wiki/J002E3" title="J002E3">J002E3</a></b> was at first thought to be a new <a href="/wiki/Natural_satellite" title="Natural satellite">moon</a> of <a href="/wiki/Earth" title="Earth">Earth</a> when discovered in 2002 but was later found to be the <a href="/wiki/S-IVB" title="S-IVB">third stage</a> of the <a href="/wiki/Apollo_12" title="Apollo 12">Apollo 12</a> <a href="/wiki/Saturn_V" title="Saturn V">Saturn V</a>?</li></ul> <ul><li>...that the <b><a href="/wiki/Tooting_(crater)" title="Tooting (crater)">Tooting</a></b> <a href="/wiki/Impact_crater" title="Impact crater">impact crater</a> on <a href="/wiki/Mars" title="Mars">Mars</a> was named after the <a href="/wiki/Tooting" title="Tooting">London suburb of the same name</a> because the discoverer "thought [his] mum and brother would get a kick out of having their home town paired with a land form on Mars"?</li></ul> <ul><li>...that 99% of the mass of the <b><a href="/wiki/Carme_group" title="Carme group">Carme group</a>,</b> a group of <a href="/wiki/Retrograde" class="mw-disambig" title="Retrograde">retrograde</a> <a href="/wiki/Irregular_satellite" class="mw-redirect" title="Irregular satellite">irregular satellites</a> of <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>, is located in <a href="/wiki/Carme_(moon)" title="Carme (moon)">Carme</a>?</li></ul> <table class="noprint" width="100%" border="0" style="padding: 0; margin: 0; background-color:transparent"> <tbody><tr> <td><div style="text-align:right;margin-bottom:0px;"><b><a href="/wiki/Portal:Solar_System/Did_you_know" title="Portal:Solar System/Did you know">More did you know...</a></b></div></td> <td> <div style="text-align:right;margin-right:10px;margin-bottom:0px;"></div> </td></tr></tbody></table> <div style="clear:both;" class=""></div></div> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Categories" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">Categories</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><b>Major categories</b></div> <table style="width:100%;border:solid 0px #FFFFFF;background-color:transparent;text-align:center;padding:0px;padding-top:1em;" cellspacing="0px;"> <tbody><tr> <td style="width:33%;"> </td> <td style="width:33%;"><span typeof="mw:File"><a href="/wiki/Category:Solar_System" title="Category:Solar System"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Solar_System_size_to_scale.svg/55px-Solar_System_size_to_scale.svg.png" decoding="async" width="55" height="31" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Solar_System_size_to_scale.svg/83px-Solar_System_size_to_scale.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/00/Solar_System_size_to_scale.svg/110px-Solar_System_size_to_scale.svg.png 2x" data-file-width="512" data-file-height="288" /></a></span> </td> <td style="width:33%;"> </td></tr> <tr> <td> </td> <th><b><a href="/wiki/Category:Solar_System" title="Category:Solar System">Solar System</a></b> </th> <td> </td></tr> <tr> <td><span typeof="mw:File"><a href="/wiki/Category:Celestial_mechanics" title="Category:Celestial mechanics"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Ecliptic-4.png/55px-Ecliptic-4.png" decoding="async" width="55" height="51" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Ecliptic-4.png/83px-Ecliptic-4.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/90/Ecliptic-4.png/110px-Ecliptic-4.png 2x" data-file-width="388" data-file-height="361" /></a></span> </td> <td><span typeof="mw:File"><a href="/wiki/Category:Comets" title="Category:Comets"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Comet-Hale-Bopp-29-03-1997_hires_adj.jpg/42px-Comet-Hale-Bopp-29-03-1997_hires_adj.jpg" decoding="async" width="42" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Comet-Hale-Bopp-29-03-1997_hires_adj.jpg/64px-Comet-Hale-Bopp-29-03-1997_hires_adj.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/df/Comet-Hale-Bopp-29-03-1997_hires_adj.jpg/84px-Comet-Hale-Bopp-29-03-1997_hires_adj.jpg 2x" data-file-width="2080" data-file-height="2712" /></a></span> </td> <td><span typeof="mw:File"><a href="/wiki/Category:Fiction_about_the_Solar_System" title="Category:Fiction about the Solar System"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/War_of_the_Worlds_original_cover_bw.jpg/38px-War_of_the_Worlds_original_cover_bw.jpg" decoding="async" width="38" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/War_of_the_Worlds_original_cover_bw.jpg/58px-War_of_the_Worlds_original_cover_bw.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8e/War_of_the_Worlds_original_cover_bw.jpg/76px-War_of_the_Worlds_original_cover_bw.jpg 2x" data-file-width="487" data-file-height="700" /></a></span> </td></tr> <tr> <th><b><a href="/wiki/Category:Celestial_mechanics" title="Category:Celestial mechanics">Celestial mechanics</a></b> </th> <th><b><a href="/wiki/Category:Comets" title="Category:Comets">Comets</a></b> </th> <td><b><a href="/wiki/Category:Fiction_about_the_Solar_System" title="Category:Fiction about the Solar System">...in fiction</a></b> </td></tr> <tr> <td><span typeof="mw:File"><a href="/wiki/Category:Minor_planets" title="Category:Minor planets"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/951_Gaspra.jpg/55px-951_Gaspra.jpg" decoding="async" width="55" height="48" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/951_Gaspra.jpg/83px-951_Gaspra.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/81/951_Gaspra.jpg/110px-951_Gaspra.jpg 2x" data-file-width="1000" data-file-height="880" /></a></span> </td> <td><span typeof="mw:File"><a href="/wiki/Category:Moons" title="Category:Moons"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/02/Rhea_true_color.jpg/55px-Rhea_true_color.jpg" decoding="async" width="55" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/02/Rhea_true_color.jpg/83px-Rhea_true_color.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/02/Rhea_true_color.jpg/110px-Rhea_true_color.jpg 2x" data-file-width="604" data-file-height="602" /></a></span> </td> <td><span typeof="mw:File"><a href="/wiki/Category:Missions_to_the_planets" title="Category:Missions to the planets"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Aldrin_Apollo_11.jpg/55px-Aldrin_Apollo_11.jpg" decoding="async" width="55" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Aldrin_Apollo_11.jpg/83px-Aldrin_Apollo_11.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Aldrin_Apollo_11.jpg/110px-Aldrin_Apollo_11.jpg 2x" data-file-width="2700" data-file-height="2700" /></a></span> </td></tr> <tr> <th><b><a href="/wiki/Category:Minor_planets" title="Category:Minor planets">Minor planets</a></b> </th> <th><b><a href="/wiki/Category:Moons" title="Category:Moons">Moons</a></b> </th> <th><b><a href="/wiki/Category:Missions_to_the_planets" title="Category:Missions to the planets">Planetary missions</a></b> </th></tr> <tr> <td><span typeof="mw:File"><a href="/wiki/Category:Planets_of_the_Solar_System" title="Category:Planets of the Solar System"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Jupiter_by_Cassini-Huygens.jpg/55px-Jupiter_by_Cassini-Huygens.jpg" decoding="async" width="55" height="52" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Jupiter_by_Cassini-Huygens.jpg/83px-Jupiter_by_Cassini-Huygens.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Jupiter_by_Cassini-Huygens.jpg/110px-Jupiter_by_Cassini-Huygens.jpg 2x" data-file-width="1080" data-file-height="1020" /></a></span> </td> <td><span typeof="mw:File"><a href="/wiki/Category:Sun" title="Category:Sun"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/The_Sun_as_seen_in_January_1st_2015.jpg/55px-The_Sun_as_seen_in_January_1st_2015.jpg" decoding="async" width="55" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/The_Sun_as_seen_in_January_1st_2015.jpg/83px-The_Sun_as_seen_in_January_1st_2015.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/The_Sun_as_seen_in_January_1st_2015.jpg/110px-The_Sun_as_seen_in_January_1st_2015.jpg 2x" data-file-width="4096" data-file-height="4096" /></a></span> </td> <td><span typeof="mw:File"><a href="/wiki/Category:Surface_features_of_bodies_of_the_Solar_System" title="Category:Surface features of bodies of the Solar System"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Phobos_moon_%28large%29.jpg/55px-Phobos_moon_%28large%29.jpg" decoding="async" width="55" height="54" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Phobos_moon_%28large%29.jpg/83px-Phobos_moon_%28large%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Phobos_moon_%28large%29.jpg/110px-Phobos_moon_%28large%29.jpg 2x" data-file-width="665" data-file-height="650" /></a></span> </td></tr> <tr> <th><b><a href="/wiki/Category:Planets_of_the_Solar_System" title="Category:Planets of the Solar System">Planets...</a></b> </th> <th><b><a href="/wiki/Category:Sun" title="Category:Sun">Sun</a></b> </th> <th><b><a href="/wiki/Category:Surface_features_of_bodies_of_the_Solar_System" title="Category:Surface features of bodies of the Solar System">Surface feature nomenclature...</a></b> </th></tr></tbody></table> <p><br /> </p> <div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><b>Full category tree</b></div> <figure class="mw-halign-right" typeof="mw:File"><a href="/wiki/File:C_Puzzle.png" class="mw-file-description" title="Category puzzle"><img alt="Category puzzle" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/C_Puzzle.png/42px-C_Puzzle.png" decoding="async" width="42" height="42" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/C_Puzzle.png/63px-C_Puzzle.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/da/C_Puzzle.png/84px-C_Puzzle.png 2x" data-file-width="150" data-file-height="150" /></a><figcaption>Category puzzle</figcaption></figure> <div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><small>Select [►] to view subcategories</small></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 30em;"> <div class="CategoryTreeTag" 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style="display:none"></div></div><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeBullet"><a class="CategoryTreeToggle" data-ct-title="Solar_System_models" aria-expanded="false"></a> </span> <bdi dir="ltr"><a href="/wiki/Category:Solar_System_models" title="Category:Solar System models">Solar System models</a></bdi></div><div class="CategoryTreeChildren" style="display:none"></div></div><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeBullet"><a class="CategoryTreeToggle" data-ct-title="Trans-Neptunian_region" aria-expanded="false"></a> </span> <bdi dir="ltr"><a href="/wiki/Category:Trans-Neptunian_region" title="Category:Trans-Neptunian region">Trans-Neptunian region</a></bdi></div><div class="CategoryTreeChildren" style="display:none"></div></div></div></div></div> </div> <div style="clear:both;" class=""></div></div> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="In_the_news" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">In the news</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <b><a href="https://en.wikinews.org/wiki/Portal:Space" class="extiw" title="wikinews:Portal:Space">Wikinews Space portal</a></b><div style="float:right;margin-left:0.9em"> <span typeof="mw:File"><a href="https://en.wikinews.org/wiki/Main_Page" title="Read and edit Wikinews"><img alt="Read and edit Wikinews" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/75px-Wikinews-logo.svg.png" decoding="async" width="75" height="41" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/113px-Wikinews-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/150px-Wikinews-logo.svg.png 2x" data-file-width="759" data-file-height="415" /></a></span> </div> <ul><li><a href="/wiki/April_7" title="April 7">April 7</a>: <a href="https://en.wikinews.org/wiki/en:NASA%27s_helicopter_Ingenuity_survives_its_first_night_at_Mars" class="extiw" title="wikinews:en:NASA's helicopter Ingenuity survives its first night at Mars">NASA's helicopter Ingenuity survives its first night at Mars</a></li> <li><a href="/wiki/December_25" title="December 25">December 25</a>: <a href="https://en.wikinews.org/wiki/en:%27Earth-based_life_can_survive_in_hydrogen-rich_atmospheres%27:_MIT_professor_Dr_Seager_tells_Wikinews_about_her_research_on_organisms_thriving_in_oxygen-less_environment" class="extiw" title="wikinews:en:'Earth-based life can survive in hydrogen-rich atmospheres': MIT professor Dr Seager tells Wikinews about her research on organisms thriving in oxygen-less environment">'Earth-based life can survive in hydrogen-rich atmospheres': MIT professor Dr Seager tells Wikinews about her research on organisms thriving in oxygen-less environment</a></li> <li><a href="/wiki/July_7" title="July 7">July 7</a>: <a href="https://en.wikinews.org/wiki/en:Astronomer_Anthony_Boccaletti_discusses_observation_of_birth_of_potential_exoplanet_with_Wikinews" class="extiw" title="wikinews:en:Astronomer Anthony Boccaletti discusses observation of birth of potential exoplanet with Wikinews">Astronomer Anthony Boccaletti discusses observation of birth of potential exoplanet with Wikinews</a></li> <li><a href="/wiki/May_31" title="May 31">May 31</a>: <a href="https://en.wikinews.org/wiki/en:SpaceX_successfully_launches_its_first_crewed_spaceflight" class="extiw" title="wikinews:en:SpaceX successfully launches its first crewed spaceflight">SpaceX successfully launches its first crewed spaceflight</a></li> <li><a href="/wiki/May_22" title="May 22">May 22</a>: <a href="https://en.wikinews.org/wiki/en:Astronomer_tells_Wikinews_about_discovery_of_closest_black_hole_known_so_far" class="extiw" title="wikinews:en:Astronomer tells Wikinews about discovery of closest black hole known so far">Astronomer tells Wikinews about discovery of closest black hole known so far</a></li> <li><a href="/wiki/October_12" title="October 12">October 12</a>: <a href="https://en.wikinews.org/wiki/en:Cosmonaut_Alexei_Leonov_dies_at_age_85" class="extiw" title="wikinews:en:Cosmonaut Alexei Leonov dies at age 85">Cosmonaut Alexei Leonov dies at age 85</a></li> <li><a href="/wiki/October_10" title="October 10">October 10</a>: <a href="https://en.wikinews.org/wiki/en:Swedish_academy_announces_2019_Nobel_Prize_winners_in_physics" class="extiw" title="wikinews:en:Swedish academy announces 2019 Nobel Prize winners in physics">Swedish academy announces 2019 Nobel Prize winners in physics</a></li> <li><a href="/wiki/September_14" title="September 14">September 14</a>: <a href="https://en.wikinews.org/wiki/en:Astronomers_find_water_vapour_in_atmosphere_of_exoplanet_K2-18b" class="extiw" title="wikinews:en:Astronomers find water vapour in atmosphere of exoplanet K2-18b">Astronomers find water vapour in atmosphere of exoplanet K2-18b</a></li> <li><a href="/wiki/March_5" title="March 5">March 5</a>: <a href="https://en.wikinews.org/wiki/en:SpaceX_Crew_Dragon_capsule_docks_with_International_Space_Station" class="extiw" title="wikinews:en:SpaceX Crew Dragon capsule docks with International Space Station">SpaceX Crew Dragon capsule docks with International Space Station</a></li> <li><a href="/wiki/January_9" title="January 9">January 9</a>: <a href="https://en.wikinews.org/wiki/en:Simple_animals_could_live_in_Martian_brines:_Wikinews_interviews_planetary_scientist_Vlada_Stamenkovi%C4%87" class="extiw" title="wikinews:en:Simple animals could live in Martian brines: Wikinews interviews planetary scientist Vlada Stamenković">Simple animals could live in Martian brines: Wikinews interviews planetary scientist Vlada Stamenković</a></li> <li><a href="/wiki/November_29" title="November 29">November 29</a>: <a href="https://en.wikinews.org/wiki/en:NASA%27s_InSight_Lander_makes_it_to_Mars" class="extiw" title="wikinews:en:NASA's InSight Lander makes it to Mars">NASA's InSight Lander makes it to Mars</a></li> <li><a href="/wiki/October_12" title="October 12">October 12</a>: <a href="https://en.wikinews.org/wiki/en:Manned_Soyuz_space_mission_aborts_during_launch" class="extiw" title="wikinews:en:Manned Soyuz space mission aborts during launch">Manned Soyuz space mission aborts during launch</a></li></ul> <div style="clear:both;" class=""></div></div></div></div> <div style="width:100%"> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Major_topics" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">Major topics</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><figure class="mw-default-size noresize" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/4/43/Solar_System_Template_2.png" decoding="async" width="666" height="36" class="mw-file-element" data-file-width="666" data-file-height="36" usemap="#ImageMap_65688d6ffcca7b72" /></span><map name="ImageMap_65688d6ffcca7b72"><area href="/wiki/Sun" shape="circle" coords="0,0,90,35" alt="The Sun" title="The Sun" /><area href="/wiki/Mercury_(planet)" shape="circle" coords="112,18,6" alt="Mercury" title="Mercury" /><area href="/wiki/Venus" shape="circle" coords="153,18,8" alt="Venus" title="Venus" /><area href="/wiki/Moon" shape="circle" coords="204,8,4" alt="The Moon" title="The Moon" /><area href="/wiki/Earth" shape="circle" coords="194,18,8" alt="Earth" title="Earth" /><area href="/wiki/Mars" shape="circle" coords="234,18,6" alt="Mars" title="Mars" /><area href="/wiki/Moons_of_Mars" shape="circle" coords="240,13,4" alt="Phobos and Deimos" title="Phobos and Deimos" /><area href="/wiki/Ceres_(dwarf_planet)" shape="circle" coords="271,18,5" alt="Ceres" title="Ceres" /><area href="/wiki/Asteroid_belt" shape="rect" coords="256,0,288,35" alt="The main asteroid belt" title="The main asteroid belt" /><area href="/wiki/Jupiter" shape="circle" coords="316,18,14" alt="Jupiter" title="Jupiter" /><area href="/wiki/Moons_of_Jupiter" shape="circle" coords="327,5,9" alt="Moons of Jupiter" title="Moons of Jupiter" /><area href="/wiki/Saturn" shape="circle" coords="369,18,12" alt="Saturn" title="Saturn" /><area href="/wiki/Moons_of_Saturn" shape="circle" coords="378,7,11" alt="Moons of Saturn" title="Moons of Saturn" /><area href="/wiki/Uranus" shape="circle" coords="418,18,9" alt="Uranus" title="Uranus" /><area href="/wiki/Moons_of_Uranus" shape="circle" coords="425,11,8" alt="Moons of Uranus" title="Moons of Uranus" /><area href="/wiki/Neptune" shape="circle" coords="462,18,9" alt="Neptune" title="Neptune" /><area href="/wiki/Moons_of_Neptune" shape="circle" coords="471,9,4" alt="Moons of Neptune" title="Moons of Neptune" /><area href="/wiki/Pluto" shape="circle" coords="502,18,4" alt="Pluto" title="Pluto" /><area href="/wiki/Moons_of_Pluto" shape="circle" coords="506,15,6" alt="Moons of Pluto" title="Moons of Pluto" /><area href="/wiki/Haumea_(dwarf_planet)" shape="circle" coords="536,18,4" alt="Haumea" title="Haumea" /><area href="/wiki/Moons_of_Haumea" shape="circle" coords="539,14,5" alt="Moons of Haumea" title="Moons of Haumea" /><area href="/wiki/Makemake_(dwarf_planet)" shape="circle" coords="570,18,5" alt="Makemake" title="Makemake" /><area href="/wiki/Kuiper_belt" shape="rect" coords="492,0,581,35" alt="The Kuiper Belt" title="The Kuiper Belt" /><area href="/wiki/Eris_(dwarf_planet)" shape="circle" coords="605,18,4" alt="Eris" title="Eris" /><area href="/wiki/Dysnomia_(moon)" shape="circle" coords="607,14,4" alt="Dysnomia" title="Dysnomia" /><area href="/wiki/Scattered_disc" shape="rect" coords="581,0,622,35" alt="The Scattered Disc" title="The Scattered Disc" /><area href="/wiki/Hills_cloud" shape="rect" coords="623,0,640,35" alt="The Hills Cloud" title="The Hills Cloud" /><area href="/wiki/Oort_cloud" shape="rect" coords="641,0,666,35" alt="The Oort Cloud" title="The Oort Cloud" /></map><figcaption></figcaption></figure></div> <p><b><a href="/wiki/Solar_System" title="Solar System">Solar System</a>:</b> <small><b><a href="/wiki/Planet" title="Planet">Planets</a></b> (<b><a href="/wiki/Definition_of_planet" title="Definition of planet">Definition</a></b> <b>·</b> <b><a href="/wiki/Planetary_habitability" title="Planetary habitability">Planetary habitability</a></b> <b>·</b> <a href="/wiki/Terrestrial_planet" title="Terrestrial planet">Terrestrial planets</a> <b>·</b> <a href="/wiki/Gas_giant" title="Gas giant">Gas giants</a> <b>·</b> <a href="/wiki/Planetary_ring" class="mw-redirect" title="Planetary ring">Rings</a>) <b>·</b> <b><a href="/wiki/Dwarf_planet" title="Dwarf planet">Dwarf planets</a></b> (<a href="/wiki/Plutoid" class="mw-redirect" title="Plutoid">Plutoid</a>) <b>·</b> <a href="/wiki/Space_colonization" title="Space colonization">Colonization</a> <b>·</b> <b><a href="/wiki/Timeline_of_discovery_of_Solar_System_planets_and_their_natural_satellites" class="mw-redirect" title="Timeline of discovery of Solar System planets and their natural satellites">Discovery timeline</a></b>ˑ <a href="/wiki/Space_exploration" title="Space exploration">Exploration</a> <b>·</b> <b><a href="/wiki/List_of_moons" class="mw-redirect" title="List of moons">Moons</a></b> <b>·</b> <b><a href="/wiki/List_of_planetariums" title="List of planetariums">Planetariums</a></b></small> </p> <dl><dd><b><a href="/wiki/Sun" title="Sun">Sun</a>:</b> <small><a href="/wiki/Sunspot" title="Sunspot">Sunspot</a> <b>·</b> <a href="/wiki/Solar_wind" title="Solar wind">Solar wind</a> <b>·</b> <a href="/wiki/Solar_flare" title="Solar flare">Solar flare</a> <b>·</b> <b><a href="/wiki/Solar_eclipse" title="Solar eclipse">Solar eclipse</a></b></small> <dl><dd><b><a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a>:</b> <small><a href="/wiki/Geology_of_Mercury" title="Geology of Mercury">Geology</a> <b>·</b> <a href="/wiki/Exploration_of_Mercury" title="Exploration of Mercury">Exploration</a> (<a href="/wiki/Mariner_10" title="Mariner 10">Mariner 10</a> <b>·</b> <a href="/wiki/MESSENGER" title="MESSENGER">MESSENGER</a> <b>·</b> <a href="/wiki/BepiColombo" title="BepiColombo">BepiColombo</a>) <b>·</b> <a href="/wiki/Transit_of_Mercury" title="Transit of Mercury">Transit</a></small></dd> <dd><b><a href="/wiki/Venus" title="Venus">Venus</a>:</b> <small><a href="/wiki/Geology_of_Venus" title="Geology of Venus">Geology</a> <b>·</b> <a href="/wiki/Atmosphere_of_Venus" title="Atmosphere of Venus">Atmosphere</a> <b>·</b> <a href="/wiki/Observations_and_explorations_of_Venus" title="Observations and explorations of Venus">Exploration</a> (<a href="/wiki/Venera" title="Venera">Venera</a> <b>·</b> <a href="/wiki/Mariner_program" title="Mariner program">Mariner program</a> <a href="/wiki/Mariner_2" title="Mariner 2">2</a>/<a href="/wiki/Mariner_5" title="Mariner 5">5</a>/<a href="/wiki/Mariner_10" title="Mariner 10">10</a> <b>·</b> <a href="/wiki/Pioneer_Venus_project" title="Pioneer Venus project">Pioneer</a> <b>·</b> <a href="/wiki/Vega_program" title="Vega program">Vega</a> <a href="/wiki/Vega_1" title="Vega 1">1</a>/<a href="/wiki/Vega_2" title="Vega 2">2</a>ˑ <a href="/wiki/Magellan_probe" class="mw-redirect" title="Magellan probe">Magellan</a> <b>·</b> <a href="/wiki/Venus_Express" title="Venus Express">Venus Express</a>) <b>·</b> <b><a href="/wiki/Transit_of_Venus" title="Transit of Venus">Transit</a></b></small></dd> <dd><b><a href="/wiki/Earth" title="Earth">Earth</a></b>: <small><a href="/wiki/History_of_Earth" title="History of Earth">History</a> <b>·</b> <a href="/wiki/Geology" title="Geology">Geology</a> <b>·</b> <a href="/wiki/Geography" title="Geography">Geography</a> <b>·</b> <a href="/wiki/Atmosphere_of_Earth" title="Atmosphere of Earth">Atmosphere</a> <b>·</b> <a href="/wiki/Earth%27s_rotation" title="Earth's rotation">Rotation</a></small> <dl><dd><i><b><a href="/wiki/Moon" title="Moon">Moon</a>:</b></i> <small><a href="/wiki/Geology_of_the_Moon" title="Geology of the Moon">Geology</a> <b>·</b> <a href="/wiki/Selenography" title="Selenography">Selenography</a> <b>·</b> <a href="/wiki/Atmosphere_of_the_Moon" title="Atmosphere of the Moon">Atmosphere</a> <b>·</b> <a href="/wiki/Exploration_of_the_Moon" title="Exploration of the Moon">Exploration</a> (<a href="/wiki/Luna_programme" title="Luna programme">Luna</a> <b>·</b> <a href="/wiki/Project_Apollo" class="mw-redirect" title="Project Apollo">Apollo</a> <b><a href="/wiki/Apollo_8" title="Apollo 8">8</a></b>/<a href="/wiki/Apollo_11" title="Apollo 11">11</a>) <b>·</b> <a href="/wiki/Orbit_of_the_Moon" title="Orbit of the Moon">Orbit</a> <b>·</b> <a href="/wiki/Lunar_eclipse" title="Lunar eclipse">Lunar eclipse</a></small></dd></dl></dd> <dd><b><a href="/wiki/Mars" title="Mars">Mars</a>:</b> <small><a href="/wiki/Moons_of_Mars" title="Moons of Mars">Moons</a> <i>(<a href="/wiki/Phobos_(moon)" title="Phobos (moon)">Phobos</a> <b>·</b> <a href="/wiki/Deimos_(moon)" title="Deimos (moon)">Deimos</a>)</i> <b>·</b> <a href="/wiki/Geology_of_Mars" title="Geology of Mars">Geology</a> <b>·</b> <a href="/wiki/Geography_of_Mars" class="mw-redirect" title="Geography of Mars">Geography</a> <b>·</b> <a href="/wiki/Atmosphere_of_Mars" title="Atmosphere of Mars">Atmosphere</a> <b>·</b> <a href="/wiki/Exploration_of_Mars" title="Exploration of Mars">Exploration</a> (<a href="/wiki/Mariner_program" title="Mariner program">Mariner</a> <b>·</b> <a href="/wiki/Mars_program" title="Mars program">Mars</a> <b>·</b> <a href="/wiki/Viking_program" title="Viking program">Viking</a> <a href="/wiki/Viking_1" title="Viking 1">1</a>/<a href="/wiki/Viking_2" title="Viking 2">2</a> <b>·</b> <a href="/wiki/Mars_Pathfinder" title="Mars Pathfinder">Pathfinder</a> <b>·</b> <a href="/wiki/Mars_Exploration_Rover" title="Mars Exploration Rover">MER</a>)</small></dd> <dd><i><b><a href="/wiki/Ceres_(dwarf_planet)" title="Ceres (dwarf planet)">Ceres</a>:</b></i> <small><a href="/wiki/Ceres_(dwarf_planet)#Exploration" title="Ceres (dwarf planet)">Exploration</a> (<a href="/wiki/Dawn_(spacecraft)" title="Dawn (spacecraft)">Dawn</a>)</small></dd> <dd><a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>: <small><b><a href="/wiki/Moons_of_Jupiter" title="Moons of Jupiter">Moons</a></b> <i>(<a href="/wiki/Amalthea_(moon)" title="Amalthea (moon)">Amalthea</a>, <b><a href="/wiki/Io_(moon)" title="Io (moon)">Io</a></b> <b>·</b> <b><a href="/wiki/Europa_(moon)" title="Europa (moon)">Europa</a></b> <b>·</b> <b><a href="/wiki/Ganymede_(moon)" title="Ganymede (moon)">Ganymede</a></b> <b>·</b> <b><a href="/wiki/Callisto_(moon)" title="Callisto (moon)">Callisto</a></b>)</i> <b>·</b> <b><a href="/wiki/Rings_of_Jupiter" title="Rings of Jupiter">Rings</a></b> <b>·</b> <b><a href="/wiki/Atmosphere_of_Jupiter" title="Atmosphere of Jupiter">Atmosphere</a></b> <b>·</b> <b><a href="/wiki/Magnetosphere_of_Jupiter" title="Magnetosphere of Jupiter">Magnetosphere</a></b> <b>·</b> <a href="/wiki/Exploration_of_Jupiter" title="Exploration of Jupiter">Exploration</a> (<a href="/wiki/Pioneer_program" title="Pioneer program">Pioneer</a> <a href="/wiki/Pioneer_10" title="Pioneer 10">10</a>/<a href="/wiki/Pioneer_11" title="Pioneer 11">11</a> <b>·</b> <a href="/wiki/Voyager_program" title="Voyager program">Voyager</a> <a href="/wiki/Voyager_1" title="Voyager 1">1</a>/<a href="/wiki/Voyager_2" title="Voyager 2">2</a> <b>·</b> <a href="/wiki/Ulysses_probe" class="mw-redirect" title="Ulysses probe">Ulysses</a> <b>·</b> <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens">Cassini</a> <b>·</b> <a href="/wiki/Galileo_(spacecraft)" title="Galileo (spacecraft)">Galileo</a> <b>·</b> <a href="/wiki/New_Horizons" title="New Horizons">New Horizons</a>)</small></dd> <dd><b><a href="/wiki/Saturn" title="Saturn">Saturn</a>:</b> <small><a href="/wiki/Moons_of_Saturn" title="Moons of Saturn">Moons</a> <i>(<a href="/wiki/Mimas_(moon)" class="mw-redirect" title="Mimas (moon)">Mimas</a> <b>·</b> <b><a href="/wiki/Enceladus" title="Enceladus">Enceladus</a></b> <b>·</b> <a href="/wiki/Tethys_(moon)" title="Tethys (moon)">Tethys</a> <b>·</b> <a href="/wiki/Dione_(moon)" title="Dione (moon)">Dione</a> <b>·</b> <a href="/wiki/Rhea_(moon)" title="Rhea (moon)">Rhea</a> <b>·</b> <b><a href="/wiki/Titan_(moon)" title="Titan (moon)">Titan</a></b> <b>·</b> <a href="/wiki/Iapetus_(moon)" title="Iapetus (moon)">Iapetus</a>)</i> <b>·</b> <a href="/wiki/Rings_of_Saturn" title="Rings of Saturn">Rings</a> <b>·</b> <a href="/wiki/Exploration_of_Saturn" title="Exploration of Saturn">Exploration</a> (<a href="/wiki/Pioneer_11" title="Pioneer 11">Pioneer 11</a> <b>·</b> <a href="/wiki/Voyager_program" title="Voyager program">Voyager</a> <a href="/wiki/Voyager_1" title="Voyager 1">1</a>/<a href="/wiki/Voyager_2" title="Voyager 2">2</a> <b>·</b> <a href="/wiki/Cassini%E2%80%93Huygens" title="Cassini–Huygens">Cassini</a>–<a href="/wiki/Huygens_probe" class="mw-redirect" title="Huygens probe">Huygens</a>)</small></dd> <dd><b><a href="/wiki/Uranus" title="Uranus">Uranus</a></b>: <small><b><a href="/wiki/Moons_of_Uranus" title="Moons of Uranus">Moons</a></b> <i>(<a href="/wiki/Miranda_(moon)" title="Miranda (moon)">Miranda</a> <b>·</b> <a href="/wiki/Ariel_(moon)" title="Ariel (moon)">Ariel</a> <b>·</b> <a href="/wiki/Umbriel_(moon)" class="mw-redirect" title="Umbriel (moon)">Umbriel</a> <b>·</b> <b><a href="/wiki/Titania_(moon)" title="Titania (moon)">Titania</a></b> <b>·</b> <b><a href="/wiki/Oberon_(moon)" title="Oberon (moon)">Oberon</a></b>)</i> <b>·</b> <b><a href="/wiki/Rings_of_Uranus" title="Rings of Uranus">Rings</a></b> <b>·</b> <a href="/wiki/Exploration_of_Uranus" title="Exploration of Uranus">Exploration</a> (<a href="/wiki/Voyager_2" title="Voyager 2">Voyager 2</a>)</small></dd> <dd><b><a href="/wiki/Neptune" title="Neptune">Neptune</a></b>: <small><a href="/wiki/Moons_of_Neptune" title="Moons of Neptune">Moons</a> <i>(<b><a href="/wiki/Triton_(moon)" title="Triton (moon)">Triton</a></b>)</i> <b>·</b> <b><a href="/wiki/Rings_of_Neptune" title="Rings of Neptune">Rings</a></b> <b>·</b> <a href="/wiki/Neptune#Exploration" title="Neptune">Exploration</a> (<a href="/wiki/Voyager_2" title="Voyager 2">Voyager 2</a>)</small></dd> <dd><b><a href="/wiki/Planets_beyond_Neptune" title="Planets beyond Neptune">Planets beyond Neptune</a></b></dd> <dd><i><b><a href="/wiki/Pluto" title="Pluto">Pluto</a>:</b></i> <small><a href="/wiki/Moons_of_Pluto" title="Moons of Pluto">Moons</a> <i>(<a href="/wiki/Charon_(moon)" title="Charon (moon)">Charon</a>, <a href="/wiki/Nix_(moon)" title="Nix (moon)">Nix</a>, <a href="/wiki/Hydra_(moon)" title="Hydra (moon)">Hydra</a>, <a href="/wiki/Kerberos_(moon)" title="Kerberos (moon)">Kerberos</a>, <a href="/wiki/Styx_(moon)" title="Styx (moon)">Styx</a>)</i> <b>·</b> <a href="/wiki/Geology_of_Pluto" title="Geology of Pluto">Geology</a> <b>·</b> <a href="/wiki/Atmosphere_of_Pluto" title="Atmosphere of Pluto">Atmosphere</a> <b>·</b> <a href="/wiki/Pluto#Exploration" title="Pluto">Exploration</a> (<a href="/wiki/New_Horizons" title="New Horizons">New Horizons</a>)</small></dd> <dd><i><b><a href="/wiki/Haumea" title="Haumea">Haumea</a>:</b></i> <small><a href="/wiki/Moons_of_Haumea" title="Moons of Haumea">Moons</a> <i>(<a href="/wiki/Hi%27iaka_(moon)" class="mw-redirect" title="Hi'iaka (moon)">Hi'iaka</a>, <a href="/wiki/Namaka_(moon)" title="Namaka (moon)">Namaka</a>)</i> <b>·</b> <a href="/wiki/Haumea#Ring" title="Haumea">Ring</a></small></dd> <dd><i><a href="/wiki/50000_Quaoar" class="mw-redirect" title="50000 Quaoar">Quaoar</a>:</i> <small><i><a href="/wiki/Weywot_(moon)" class="mw-redirect" title="Weywot (moon)">Weywot</a></i> <b>·</b> <a href="/wiki/50000_Quaoar#Rings" class="mw-redirect" title="50000 Quaoar">Rings</a></small></dd> <dd><i><b><a href="/wiki/Makemake" title="Makemake">Makemake</a></b></i>: <small><i><a href="/wiki/S/2015_(136472)_1" title="S/2015 (136472) 1">S/2015 (136472) 1</a></i></small></dd> <dd><i><a href="/wiki/225088_Gonggong" class="mw-redirect" title="225088 Gonggong">Gonggong</a>:</i> <small><i><a href="/wiki/Xiangliu_(moon)" title="Xiangliu (moon)">Xiangliu</a></i></small></dd> <dd><i><b><a href="/wiki/Eris_(dwarf_planet)" title="Eris (dwarf planet)">Eris</a>:</b></i> <small><i><a href="/wiki/Dysnomia_(moon)" title="Dysnomia (moon)">Dysnomia</a></i></small></dd> <dd><i><b><a href="/wiki/90377_Sedna" class="mw-redirect" title="90377 Sedna">Sedna</a></b></i></dd> <dd><a href="/wiki/Small_Solar_System_body" title="Small Solar System body">Small bodies</a>: <small><a href="/wiki/Meteoroid" title="Meteoroid">Meteoroids</a> <b>·</b> <a href="/wiki/Asteroid" title="Asteroid">Asteroids</a> (<b><a href="/wiki/Asteroid_belt" title="Asteroid belt">Asteroid belt</a></b>) <b>·</b> <a href="/wiki/Centaur_(minor_planet)" class="mw-redirect" title="Centaur (minor planet)">Centaurs</a> <b>·</b> <a href="/wiki/Trans-Neptunian_object" title="Trans-Neptunian object">TNOs</a> (<b><a href="/wiki/Kuiper_belt" title="Kuiper belt">Kuiper belt</a></b> <b>·</b> <b><a href="/wiki/Scattered_disc" title="Scattered disc">Scattered disc</a></b> <b>·</b> <b><a href="/wiki/Oort_cloud" title="Oort cloud">Oort cloud</a></b>) <b>·</b> <b><a href="/wiki/Comet" title="Comet">Comets</a></b> (<b><a href="/wiki/Comet_Hale%E2%80%93Bopp" title="Comet Hale–Bopp">Hale–Bopp</a></b> <b>·</b> <a href="/wiki/Halley%27s_Comet" title="Halley's Comet">Halley's</a> <b>·</b> <b><a href="/wiki/Comet_Hyakutake" title="Comet Hyakutake">Hyakutake</a></b> <b>·</b> <b><a href="/wiki/Comet_Shoemaker%E2%80%93Levy_9" title="Comet Shoemaker–Levy 9">Shoemaker–Levy 9</a></b>)</small></dd></dl></dd> <dd><b><a href="/wiki/Formation_and_evolution_of_the_Solar_System" title="Formation and evolution of the Solar System">Formation and evolution of the Solar System</a></b>: <small><a href="/wiki/History_of_Solar_System_formation_and_evolution_hypotheses" title="History of Solar System formation and evolution hypotheses">History of Solar System formation and evolution hypotheses</a> <b>·</b> <b><a href="/wiki/Nebular_hypothesis" title="Nebular hypothesis">Nebular hypothesis</a></b> </small></dd> <dd>See also: <small><a href="/wiki/Wikipedia:WikiProject_Solar_System/Featured_content" title="Wikipedia:WikiProject Solar System/Featured content">Featured content</a> <b>·</b> <a href="/wiki/Wikipedia:Featured_topics/Solar_System" title="Wikipedia:Featured topics/Solar System">Featured topic</a> <b>·</b> <a href="/wiki/Wikipedia:WikiProject_Solar_System/Good_articles" class="mw-redirect" title="Wikipedia:WikiProject Solar System/Good articles">Good articles</a> <b>·</b> <a href="/wiki/List_of_Solar_System_objects" title="List of Solar System objects">List of objects</a></small></dd></dl> <p><b>Bold</b> articles are <a href="/wiki/Wikipedia:Featured_articles" title="Wikipedia:Featured articles">featured</a>.<br /> <i>Italicized</i> articles are on dwarf planets or major moons. </p> <div style="clear:both;" class=""></div></div> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Things_you_can_do" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">Things <i>you</i> can do</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <figure class="mw-halign-right" typeof="mw:File"><a href="/wiki/File:Saturn_eclipse.jpg" class="mw-file-description" title="The planet Saturn, see here eclipsing the sun"><img alt="The planet Saturn, see here eclipsing the sun" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Saturn_eclipse.jpg/150px-Saturn_eclipse.jpg" decoding="async" width="150" height="74" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Saturn_eclipse.jpg/225px-Saturn_eclipse.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Saturn_eclipse.jpg/300px-Saturn_eclipse.jpg 2x" data-file-width="2766" data-file-height="1364" /></a><figcaption>The planet Saturn, see here eclipsing the sun</figcaption></figure> <table style="background:none;color:inherit;width:auto;"> <tbody><tr> <td style="vertical-align:top;"> <span typeof="mw:File"><a href="/wiki/File:Nuvola_apps_korganizer.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/e/e6/Nuvola_apps_korganizer.svg/50px-Nuvola_apps_korganizer.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/e/e6/Nuvola_apps_korganizer.svg/75px-Nuvola_apps_korganizer.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/e/e6/Nuvola_apps_korganizer.svg/100px-Nuvola_apps_korganizer.svg.png 2x" data-file-width="128" data-file-height="128" /></a></span><br /><div style="width: 55px; height: 0px;"></div> </td> <td> <div style="position: relative; left: 0px; margin-right: 0px; z-index: 15;">Here are some tasks awaiting attention: <ul style="font-size: 100%; margin: 0px; padding: 0.3em 0px 0.3em 25px;"> <li><b><i><a href="/wiki/Wikipedia:Requested_articles" title="Wikipedia:Requested articles">Article requests</a></i> :</b> See <a href="/wiki/Wikipedia:Requested_articles/Natural_sciences#Astronomy_and_cosmology" title="Wikipedia:Requested articles/Natural sciences">Requested articles</a></li><li><b><i><a href="/wiki/Wikipedia:Content_assessment" title="Wikipedia:Content assessment">Assess</a></i> :</b> To help us assess the quality and importance of Solar System articles, please see: <a href="/wiki/Category:Unassessed_Solar_System_articles" title="Category:Unassessed Solar System articles">Category:Unassessed Solar System articles</a> and <a href="/wiki/Category:Unknown-importance_Solar_System_articles" title="Category:Unknown-importance Solar System articles">Category:Unknown-importance Solar System articles</a>.</li><li><b><i><a href="/wiki/Wikipedia:Writing_better_articles" title="Wikipedia:Writing better articles">Expand</a></i> :</b> articles on the <b><a href="/wiki/Category:Planets_of_the_Solar_System" title="Category:Planets of the Solar System">planets</a></b> to help make them <a href="/wiki/Wikipedia:Featured_article_criteria" title="Wikipedia:Featured article criteria">featured articles</a></li><li><b><i><a href="/wiki/Wikipedia:Manual_of_Style/Infoboxes" title="Wikipedia:Manual of Style/Infoboxes">Infobox</a></i> :</b> <a href="/wiki/Category:Solar_System_articles_needing_infoboxes" title="Category:Solar System articles needing infoboxes">Solar System articles needing infoboxes</a></li><li><b><i><a href="/wiki/Wikipedia:Maintenance" title="Wikipedia:Maintenance">Maintain</a></i> :</b> <a href="/wiki/Category:Solar_System_articles_needing_attention" title="Category:Solar System articles needing attention">Solar System articles needing attention</a></li><li><b><i><a href="/wiki/Wikipedia:Requested_pictures" title="Wikipedia:Requested pictures">Photo</a></i> :</b> <a href="/wiki/Category:Wikipedia_requested_photographs_of_astronomical_bodies" title="Category:Wikipedia requested photographs of astronomical bodies">Wikipedia requested photographs of astronomical bodies</a></li><li><b><i><a href="/wiki/Wikipedia:Stub" title="Wikipedia:Stub">Stubs</a></i> :</b> Expand <a href="/wiki/Category:Stub-Class_Solar_System_articles" title="Category:Stub-Class Solar System articles">Solar System stub articles</a> and <a href="/wiki/Category:Astronomy_stubs" title="Category:Astronomy stubs">Astronomy stub articles</a></li><li><b><i>Join</i> :</b> <a href="/wiki/Wikipedia:WikiProject_Solar_System" class="mw-redirect" title="Wikipedia:WikiProject Solar System">WikiProject Solar System</a> and other <a href="/wiki/Wikipedia:WikiProject" title="Wikipedia:WikiProject">WikiProjects</a> related to this subject</li> </ul> </div> </td></tr></tbody></table> <div style="clear:both;" class=""></div></div> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r996214246"><div class="flex-columns-container"><div class="flex-columns-column"><div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Related_portals" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">Related portals</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <style data-mw-deduplicate="TemplateStyles:r1130092004">.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;justify-content:center;align-items:baseline}.mw-parser-output .portal-bar-bordered{padding:0 2em;background-color:#fdfdfd;border:1px solid #a2a9b1;clear:both;margin:1em auto 0}.mw-parser-output .portal-bar-related{font-size:100%;justify-content:flex-start}.mw-parser-output .portal-bar-unbordered{padding:0 1.7em;margin-left:0}.mw-parser-output .portal-bar-header{margin:0 1em 0 0.5em;flex:0 0 auto;min-height:24px}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;flex:0 1 auto;padding:0.15em 0;column-gap:1em;align-items:baseline;margin:0;list-style:none}.mw-parser-output .portal-bar-content-related{margin:0;list-style:none}.mw-parser-output .portal-bar-item{display:inline-block;margin:0.15em 0.2em;min-height:24px;line-height:24px}@media screen and (max-width:768px){.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;flex-flow:column wrap;align-items:baseline}.mw-parser-output .portal-bar-header{text-align:center;flex:0;padding-left:0.5em;margin:0 auto}.mw-parser-output .portal-bar-related{font-size:100%;align-items:flex-start}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;align-items:center;flex:0;column-gap:1em;border-top:1px solid #a2a9b1;margin:0 auto;list-style:none}.mw-parser-output .portal-bar-content-related{border-top:none;margin:0;list-style:none}}.mw-parser-output .navbox+link+.portal-bar,.mw-parser-output .navbox+style+.portal-bar,.mw-parser-output .navbox+link+.portal-bar-bordered,.mw-parser-output .navbox+style+.portal-bar-bordered,.mw-parser-output .sister-bar+link+.portal-bar,.mw-parser-output .sister-bar+style+.portal-bar,.mw-parser-output .portal-bar+.navbox-styles+.navbox,.mw-parser-output .portal-bar+.navbox-styles+.sister-bar{margin-top:-1px}</style><div class="portal-bar noprint metadata noviewer portal-bar-unbordered portal-bar-related" role="navigation" aria-label="Portals"><ul class="portal-bar-content portal-bar-content-related"><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/27px-Earth-moon.jpg" decoding="async" width="27" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/41px-Earth-moon.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/54px-Earth-moon.jpg 2x" data-file-width="3000" data-file-height="2400" /></span></span> </span><a href="/wiki/Portal:Outer_space" title="Portal:Outer space">Outer space</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/25px-Crab_Nebula.jpg" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/38px-Crab_Nebula.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/50px-Crab_Nebula.jpg 2x" data-file-width="3864" data-file-height="3864" /></span></span> </span><a href="/wiki/Portal:Astronomy" title="Portal:Astronomy">Astronomy</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/RocketSunIcon.svg/25px-RocketSunIcon.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/RocketSunIcon.svg/38px-RocketSunIcon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d6/RocketSunIcon.svg/50px-RocketSunIcon.svg.png 2x" data-file-width="128" data-file-height="128" /></span></span> </span><a href="/wiki/Portal:Spaceflight" title="Portal:Spaceflight">Spaceflight</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><a href="/wiki/File:Nuvola_apps_kalzium.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/25px-Nuvola_apps_kalzium.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/38px-Nuvola_apps_kalzium.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/50px-Nuvola_apps_kalzium.svg.png 2x" data-file-width="128" data-file-height="128" /></a></span> </span><a href="/wiki/Portal:Science" title="Portal:Science">Science</a></li></ul></div> <div style="clear:both;" class=""></div></div></div><div class="flex-columns-column"><div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Related_WikiProjects" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">Related WikiProjects</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <table style="width:100%;border:solid 0px #FFFFFF;background-color:transparent;text-align:center;padding:0px;padding-top:1em;" cellspacing="0px;"> <tbody><tr> <td style="width:33%;"><span typeof="mw:File"><a href="/wiki/Wikipedia:WikiProject_Solar_System" title="Wikipedia:WikiProject Solar System"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/Solar_system.jpg/44px-Solar_system.jpg" decoding="async" width="44" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/Solar_system.jpg/67px-Solar_system.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/83/Solar_system.jpg/88px-Solar_system.jpg 2x" data-file-width="4500" data-file-height="5600" /></a></span> </td> <td style="width:33%;"><span typeof="mw:File"><a href="/wiki/Wikipedia:WikiProject_Moon" title="Wikipedia:WikiProject Moon"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Moon-Mdf-2005.jpg/55px-Moon-Mdf-2005.jpg" decoding="async" width="55" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Moon-Mdf-2005.jpg/83px-Moon-Mdf-2005.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Moon-Mdf-2005.jpg/110px-Moon-Mdf-2005.jpg 2x" data-file-width="1024" data-file-height="1024" /></a></span> </td> <td style="width:33%;"><span typeof="mw:File"><a href="/wiki/Wikipedia:WikiProject_Mars" title="Wikipedia:WikiProject Mars"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Marsglobe_tiny2.jpg/55px-Marsglobe_tiny2.jpg" decoding="async" width="55" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Marsglobe_tiny2.jpg/83px-Marsglobe_tiny2.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/3/3c/Marsglobe_tiny2.jpg 2x" data-file-width="100" data-file-height="100" /></a></span> </td></tr> <tr style="padding:0px;"> <th style="width:33%"><b><a href="/wiki/Wikipedia:WikiProject_Solar_System" class="mw-redirect" title="Wikipedia:WikiProject Solar System">Solar System</a></b> </th> <th style="width:33%"><b><a href="/wiki/Wikipedia:WikiProject_Moon" class="mw-redirect" title="Wikipedia:WikiProject Moon">Moon</a></b> </th> <th style="width:33%"><b><a href="/wiki/Wikipedia:WikiProject_Mars" class="mw-redirect" title="Wikipedia:WikiProject Mars">Mars</a></b> </th></tr> <tr> <td><br /> </td></tr> <tr> <td style="width:33%;"><span typeof="mw:File"><a href="/wiki/Wikipedia:WikiProject_Astronomy" title="Wikipedia:WikiProject Astronomy"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Blackeyegalaxy.jpg/46px-Blackeyegalaxy.jpg" decoding="async" width="46" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Blackeyegalaxy.jpg/70px-Blackeyegalaxy.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Blackeyegalaxy.jpg/93px-Blackeyegalaxy.jpg 2x" data-file-width="897" data-file-height="1065" /></a></span> </td> <td style="width:33%;"><span typeof="mw:File"><a href="/wiki/Wikipedia:WikiProject_Astronomical_objects" title="Wikipedia:WikiProject Astronomical objects"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Io_highest_resolution_true_color.jpg/55px-Io_highest_resolution_true_color.jpg" decoding="async" width="55" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Io_highest_resolution_true_color.jpg/83px-Io_highest_resolution_true_color.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Io_highest_resolution_true_color.jpg/110px-Io_highest_resolution_true_color.jpg 2x" data-file-width="3196" data-file-height="3196" /></a></span> </td> <td style="width:33%;"><span typeof="mw:File"><a href="/wiki/Wikipedia:WikiProject_Spaceflight" title="Wikipedia:WikiProject Spaceflight"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/Bruce_McCandless_II_during_EVA_in_1984.jpg/55px-Bruce_McCandless_II_during_EVA_in_1984.jpg" decoding="async" width="55" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/Bruce_McCandless_II_during_EVA_in_1984.jpg/83px-Bruce_McCandless_II_during_EVA_in_1984.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/91/Bruce_McCandless_II_during_EVA_in_1984.jpg/110px-Bruce_McCandless_II_during_EVA_in_1984.jpg 2x" data-file-width="3072" data-file-height="3072" /></a></span> </td></tr> <tr style="padding:0px;"> <th style="width:33%"><b><a href="/wiki/Wikipedia:WikiProject_Astronomy" title="Wikipedia:WikiProject Astronomy">Astronomy</a></b> </th> <th style="width:33%"><b><a href="/wiki/Wikipedia:WikiProject_Astronomical_objects" title="Wikipedia:WikiProject Astronomical objects">Astronomical objects</a></b> </th> <th style="width:33%"><b><a href="/wiki/Wikipedia:WikiProject_Spaceflight" title="Wikipedia:WikiProject Spaceflight">Spaceflight</a></b> </th></tr></tbody></table> <div style="clear:both;" class=""></div></div></div></div> <div style="width:100%"> <div class="box-header-title-container flex-columns-noflex" style="clear:both;color:black;margin-bottom:0px;border:solid #333366;box-sizing:border-box;text-align:center;font-size:100%;background:#f9d71c;font-family:sans-serif;padding:.1em;border-width:1px 1px 0;padding-top:.1em;padding-left:.1em;padding-right:.1em;padding-bottom:.1em;moz-border-radius:0;webkit-border-radius:0;border-radius:0"><div class="plainlinks noprint" style="float:right;margin-bottom:.1em;color:black;font-size:80%"></div><h2 id="Associated_Wikimedia" style="font-weight:bold;padding:0;margin:0;color:black;font-family:sans-serif;border:none;font-size:100%;padding-bottom:.1em">Associated Wikimedia</h2></div><div style="color:black;opacity:1;border:1px solid #333366;box-sizing:border-box;text-align:left;padding:1em;background:white;margin:0 0 10px;vertical-align:top;border-top-width:1px;padding-top:.3em;border-radius:0"> <style data-mw-deduplicate="TemplateStyles:r1239335380">.mw-parser-output #sister-projects-list{display:flex;flex-wrap:wrap}.mw-parser-output #sister-projects-list li{display:inline-block}.mw-parser-output #sister-projects-list li span{font-weight:bold}.mw-parser-output #sister-projects-list li>div{display:inline-block;vertical-align:middle;padding:6px 4px}.mw-parser-output #sister-projects-list li>div:first-child{text-align:center}@media screen{.mw-parser-output .sister-projects-wikt-icon-dark,html.skin-theme-clientpref-night .mw-parser-output .sister-projects-wikt-icon-light{display:none}html.skin-theme-clientpref-night .mw-parser-output .sister-projects-wikt-icon-dark{display:inline}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sister-projects-wikt-icon-dark{display:inline}html.skin-theme-clientpref-os .mw-parser-output .sister-projects-wikt-icon-light{display:none}}@media(min-width:360px){.mw-parser-output #sister-projects-list li{width:33%;min-width:20em;white-space:nowrap;flex:1 0 25%}.mw-parser-output #sister-projects-list li>div:first-child{min-width:50px}}</style> <p>The following <a href="/wiki/Wikimedia_Foundation" title="Wikimedia Foundation">Wikimedia Foundation</a> sister projects provide more on this subject: </p> <style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"> <ul id="sister-projects-list"> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/Special:Search/Category:Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/31px-Commons-logo.svg.png" decoding="async" width="31" height="42" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/47px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/62px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a><figcaption></figcaption></figure></div> <div><span><a href="https://commons.wikimedia.org/wiki/Special:Search/Category:Solar_System" class="extiw" title="commons:Special:Search/Category:Solar System">Commons</a></span><br />Free media repository</div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://en.wikibooks.org/wiki/Special:Search/Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/35px-Wikibooks-logo.svg.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/53px-Wikibooks-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/70px-Wikibooks-logo.svg.png 2x" data-file-width="300" data-file-height="300" /></a><figcaption></figcaption></figure> </div> <div><span><a href="https://en.wikibooks.org/wiki/Special:Search/Solar_System" class="extiw" title="wikibooks:Special:Search/Solar System">Wikibooks</a></span><br />Free textbooks and manuals</div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Special:Search/Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/47px-Wikidata-logo.svg.png" decoding="async" width="47" height="26" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/71px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/94px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a><figcaption></figcaption></figure> </div> <div><span><a href="https://www.wikidata.org/wiki/Special:Search/Solar_System" class="extiw" title="wikidata:Special:Search/Solar System">Wikidata</a></span><br />Free knowledge base</div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://en.wikinews.org/wiki/Special:Search/Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/51px-Wikinews-logo.svg.png" decoding="async" width="51" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/77px-Wikinews-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/102px-Wikinews-logo.svg.png 2x" data-file-width="759" data-file-height="415" /></a><figcaption></figcaption></figure></div> <div><span><a href="https://en.wikinews.org/wiki/Special:Search/Solar_System" class="extiw" title="wikinews:Special:Search/Solar System">Wikinews</a></span><br />Free-content news</div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://en.wikiquote.org/wiki/Special:Search/Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/35px-Wikiquote-logo.svg.png" decoding="async" width="35" height="41" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/53px-Wikiquote-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/70px-Wikiquote-logo.svg.png 2x" data-file-width="300" data-file-height="355" /></a><figcaption></figcaption></figure></div> <div><span><a href="https://en.wikiquote.org/wiki/Special:Search/Solar_System" class="extiw" title="wikiquote:Special:Search/Solar System">Wikiquote</a></span><br />Collection of quotations</div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://en.wikisource.org/wiki/Special:Search/Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/35px-Wikisource-logo.svg.png" decoding="async" width="35" height="37" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/53px-Wikisource-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/70px-Wikisource-logo.svg.png 2x" data-file-width="410" data-file-height="430" /></a><figcaption></figcaption></figure></div> <div><span><a href="https://en.wikisource.org/wiki/Special:Search/Solar_System" class="extiw" title="wikisource:Special:Search/Solar System">Wikisource</a></span><br />Free-content library</div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://en.wikiversity.org/wiki/Special:Search/Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/41px-Wikiversity_logo_2017.svg.png" decoding="async" width="41" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/62px-Wikiversity_logo_2017.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/82px-Wikiversity_logo_2017.svg.png 2x" data-file-width="626" data-file-height="512" /></a><figcaption></figcaption></figure></div> <div><span><a href="https://en.wikiversity.org/wiki/Special:Search/Solar_System" class="extiw" title="wikiversity:Special:Search/Solar System">Wikiversity</a></span><br />Free learning tools</div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="https://en.wiktionary.org/wiki/Special:Search/Solar_System"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/0/06/Wiktionary-logo-v2.svg/35px-Wiktionary-logo-v2.svg.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/0/06/Wiktionary-logo-v2.svg/53px-Wiktionary-logo-v2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/0/06/Wiktionary-logo-v2.svg/70px-Wiktionary-logo-v2.svg.png 2x" data-file-width="391" data-file-height="391" /></a><figcaption></figcaption></figure> </div> <div><span><a href="https://en.wiktionary.org/wiki/Special:Search/Solar_System" class="extiw" title="wiktionary:Special:Search/Solar System">Wiktionary</a></span><br />Dictionary and thesaurus</div> </li> </ul> </div> <div style="clear:both;" class=""></div></div> </div> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239335380"> <div class="smallcaps" style="font-variant:small-caps;"><div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><b>Discover Wikipedia using <a href="/wiki/Wikipedia:Portal" title="Wikipedia:Portal">portals</a></b></div></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"> <ul id="sister-projects-list"> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Lorentzian_Wormhole.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Lorentzian_Wormhole.svg/35px-Lorentzian_Wormhole.svg.png" decoding="async" width="35" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Lorentzian_Wormhole.svg/53px-Lorentzian_Wormhole.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Lorentzian_Wormhole.svg/70px-Lorentzian_Wormhole.svg.png 2x" data-file-width="620" data-file-height="600" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Wikipedia:Contents/Portals" title="Wikipedia:Contents/Portals">List of all portals</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Nuvola_apps_package_graphics.png" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Nuvola_apps_package_graphics.png/35px-Nuvola_apps_package_graphics.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Nuvola_apps_package_graphics.png/53px-Nuvola_apps_package_graphics.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/22/Nuvola_apps_package_graphics.png/70px-Nuvola_apps_package_graphics.png 2x" data-file-width="128" data-file-height="128" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:The_arts" title="Portal:The arts">The arts portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><span><img alt="icon" src="//upload.wikimedia.org/wikipedia/en/thumb/6/69/P_vip.svg/35px-P_vip.svg.png" decoding="async" width="35" height="36" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/6/69/P_vip.svg/53px-P_vip.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/6/69/P_vip.svg/70px-P_vip.svg.png 2x" data-file-width="1911" data-file-height="1944" /></span><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:Biography" title="Portal:Biography">Biography portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><span><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/35px-Ambox_current_red_Americas.svg.png" decoding="async" width="35" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/53px-Ambox_current_red_Americas.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/70px-Ambox_current_red_Americas.svg.png 2x" data-file-width="360" data-file-height="290" /></span><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:Current_events" title="Portal:Current events">Current events portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><span><img alt="globe" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Terra.png/35px-Terra.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Terra.png/53px-Terra.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Terra.png/70px-Terra.png 2x" data-file-width="600" data-file-height="600" /></span><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:Geography" title="Portal:Geography">Geography portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><span><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/48/P_history.svg/35px-P_history.svg.png" decoding="async" width="35" height="32" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/48/P_history.svg/53px-P_history.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/48/P_history.svg/70px-P_history.svg.png 2x" data-file-width="400" data-file-height="360" /></span><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:History" title="Portal:History">History portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Nuvola_apps_edu_mathematics_blue-p.svg" class="mw-file-description"><img alt="square root of x" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Nuvola_apps_edu_mathematics_blue-p.svg/35px-Nuvola_apps_edu_mathematics_blue-p.svg.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Nuvola_apps_edu_mathematics_blue-p.svg/53px-Nuvola_apps_edu_mathematics_blue-p.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Nuvola_apps_edu_mathematics_blue-p.svg/70px-Nuvola_apps_edu_mathematics_blue-p.svg.png 2x" data-file-width="128" data-file-height="128" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:Mathematics" title="Portal:Mathematics">Mathematics portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Nuvola_apps_kalzium.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/35px-Nuvola_apps_kalzium.svg.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/53px-Nuvola_apps_kalzium.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/70px-Nuvola_apps_kalzium.svg.png 2x" data-file-width="128" data-file-height="128" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:Science" title="Portal:Science">Science portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Social_sciences.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Social_sciences.svg/35px-Social_sciences.svg.png" decoding="async" width="35" height="31" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Social_sciences.svg/53px-Social_sciences.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Social_sciences.svg/70px-Social_sciences.svg.png 2x" data-file-width="139" data-file-height="122" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:Society" title="Portal:Society">Society portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Noun-technology.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Noun-technology.svg/35px-Noun-technology.svg.png" decoding="async" width="35" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Noun-technology.svg/53px-Noun-technology.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Noun-technology.svg/70px-Noun-technology.svg.png 2x" data-file-width="90" data-file-height="88" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Portal:Technology" title="Portal:Technology">Technology portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Random_font_awesome.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Random_font_awesome.svg/35px-Random_font_awesome.svg.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Random_font_awesome.svg/53px-Random_font_awesome.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Random_font_awesome.svg/70px-Random_font_awesome.svg.png 2x" data-file-width="512" data-file-height="512" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Special:RandomInCategory/All_portals" title="Special:RandomInCategory/All portals">Random portal</a></span></div> </li> <li> <div><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Portal.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Portal.svg/35px-Portal.svg.png" decoding="async" width="35" height="31" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Portal.svg/53px-Portal.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Portal.svg/70px-Portal.svg.png 2x" data-file-width="36" data-file-height="32" /></a><figcaption></figcaption></figure></div> <div><span><a href="/wiki/Wikipedia:WikiProject_Portals" title="Wikipedia:WikiProject Portals">WikiProject Portals</a></span></div> </li> <li class="mw-empty-elt"> </li> </ul> </div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Portal:Solar_System&oldid=1170885981">https://en.wikipedia.org/w/index.php?title=Portal:Solar_System&oldid=1170885981</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:All_portals" title="Category:All portals">All portals</a></li><li><a href="/wiki/Category:Solar_System" 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