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href="//login.wikimedia.org"> </head> <body class="skin-vector-legacy mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-6 ns-subject mw-editable page-File_Little_Galaxy_Explored_jpg rootpage-File_Little_Galaxy_Explored_jpg skin-vector action-view wb-entitypage wb-mediainfopage wb-mediainfopage-M15504337"><div id="mw-page-base" class="noprint"></div> <div id="mw-head-base" class="noprint"></div> <div id="content" class="mw-body" role="main"> <a id="top"></a> <div id="siteNotice"></div> <div class="mw-indicators"> </div> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-namespace">File</span><span class="mw-page-title-separator">:</span><span class="mw-page-title-main">Little Galaxy Explored.jpg</span></h1> <div id="bodyContent" class="vector-body"> <div id="siteSub" class="noprint">From Wikimedia Commons, the free media repository</div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="contentSub2"></div> <div id="jump-to-nav"></div> <a class="mw-jump-link" href="#mw-head">Jump to navigation</a> <a class="mw-jump-link" href="#searchInput">Jump to search</a> <div id="mw-content-text" class="mw-body-content"><ul id="filetoc" role="navigation"><li><a href="#file">File</a></li> <li><a href="#filehistory">File history</a></li> <li><a href="#filelinks">File usage on Commons</a></li></ul><div class="fullImageLink" id="file"><a href="https://upload.wikimedia.org/wikipedia/commons/e/ee/Little_Galaxy_Explored.jpg"><img alt="File:Little Galaxy Explored.jpg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Little_Galaxy_Explored.jpg/666px-Little_Galaxy_Explored.jpg?20160413233440" decoding="async" width="666" height="599" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Little_Galaxy_Explored.jpg/999px-Little_Galaxy_Explored.jpg?20160413233440 1.5x, 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oo-ui-panelLayout'><div id='ooui-php-1' class='wbmi-tabs oo-ui-layout oo-ui-menuLayout oo-ui-menuLayout-static oo-ui-menuLayout-top oo-ui-menuLayout-showMenu oo-ui-indexLayout' data-ooui='{"_":"OO.ui.IndexLayout","classes":["wbmi-tabs"],"expanded":false,"menuPanel":{"tag":"ooui-php-2"},"contentPanel":{"tag":"ooui-php-3"},"autoFocus":false,"tabPanels":{"wikiTextPlusCaptions":{"tag":"ooui-php-4"},"statements":{"tag":"ooui-php-5"}},"tabSelectWidget":{"tag":"ooui-php-6"}}'><div aria-hidden='false' class='oo-ui-menuLayout-menu'><div id='ooui-php-2' class='oo-ui-layout oo-ui-panelLayout oo-ui-indexLayout-tabPanel' data-ooui='{"_":"OO.ui.PanelLayout","preserveContent":false,"expanded":false}'><div role='tablist' aria-multiselectable='false' tabindex='0' id='ooui-php-6' class='oo-ui-selectWidget oo-ui-selectWidget-unpressed oo-ui-widget oo-ui-widget-enabled oo-ui-tabSelectWidget oo-ui-tabSelectWidget-frameless' data-ooui='{"_":"OO.ui.TabSelectWidget","framed":false,"items":[{"tag":"ooui-php-7"},{"tag":"ooui-php-8"}]}'><div aria-selected='true' role='tab' id='ooui-php-7' class='oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement oo-ui-optionWidget oo-ui-tabOptionWidget oo-ui-optionWidget-selected' data-ooui='{"_":"OO.ui.TabOptionWidget","selected":true,"label":"File information","data":"wikiTextPlusCaptions"}'><span class='oo-ui-labelElement-label'>File information</span></div><div aria-selected='false' role='tab' id='ooui-php-8' class='oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement oo-ui-optionWidget oo-ui-tabOptionWidget' data-ooui='{"_":"OO.ui.TabOptionWidget","label":"Structured data","data":"statements"}'><span class='oo-ui-labelElement-label'>Structured data</span></div></div></div></div><div class='oo-ui-menuLayout-content'><div id='ooui-php-3' class='oo-ui-layout oo-ui-panelLayout oo-ui-stackLayout oo-ui-indexLayout-stackLayout' data-ooui='{"_":"OO.ui.StackLayout","preserveContent":false,"expanded":false,"items":[{"tag":"ooui-php-4"},{"tag":"ooui-php-5"}]}'><div role='tabpanel' id='ooui-php-4' class='wbmi-tab oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-scrollable oo-ui-tabPanelLayout oo-ui-tabPanelLayout-active' data-ooui='{"_":"OO.ui.TabPanelLayout","name":"wikiTextPlusCaptions","label":"File information","scrollable":true,"expanded":false,"classes":["wbmi-tab"]}'><h2 class="wbmi-captions-header">Captions</h2><div class='wbmi-entityview-captionsPanel oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><h3 class='wbmi-entityview-captions-header'>Captions</h3><div class='wbmi-entityview-caption oo-ui-layout oo-ui-horizontalLayout'><label class='wbmi-language-label oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement-label oo-ui-labelElement oo-ui-labelWidget'>English</label><div lang='en' dir='ltr' class='wbmi-caption-value wbmi-entityview-emptyCaption'>Add a one-line explanation of what this file represents</div></div></div><div id="mw-imagepage-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="mw-heading mw-heading2"><h2 id="Summary">Summary</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=File:Little_Galaxy_Explored.jpg&action=edit&section=1" title="Edit section: Summary"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="hproduct commons-file-information-table"> <table class="fileinfotpl-type-information vevent" dir="ltr"> <tbody><tr> <td id="fileinfotpl_desc" class="fileinfo-paramfield" lang="en">Description<span class="summary fn" style="display:none">Little Galaxy Explored.jpg</span></td> <td class="description"> <div class="description en" dir="ltr" lang="en"><span class="language en" title="English"><b>English: </b></span> The infrared portrait of the Small Magellanic Cloud, taken by NASA's Spitzer Space Telescope, reveals the stars and dust in this galaxy as never seen before. The Small Magellanic Cloud is a nearby satellite galaxy to our Milky Way galaxy, approximately 200,000 light-years away. <p>The image shows the main body of the Small Magellanic Cloud, which is comprised of the "bar" on the left and a "wing" extending to the right. The bar contains both old stars (in blue) and young stars lighting up their natal dust (green/red). The wing mainly contains young stars. In addition, the image contains a galactic globular cluster in the lower left (blue cluster of stars) and emission from dust in our own galaxy (green in the upper right and lower right corners). </p><p>The data in this image are being used by astronomers to study the lifecycle of dust in the entire galaxy: from the formation in stellar atmospheres, to the reservoir containing the present day interstellar medium, and the dust consumed in forming new stars. The dust being formed in old, evolved stars (blue stars with a red tinge) is measured using mid-infrared wavelengths. The present day interstellar dust is weighed by measuring the intensity and color of emission at longer infrared wavelengths. The rate at which the raw material is being consumed is determined by studying ionized gas regions and the younger stars (yellow/red extended regions). The Small Magellanic Cloud, and its companion galaxy the Large Magellanic Cloud, are the two galaxies where this type of study is possible, and the research could not be done without Spitzer. </p><p>This image was captured by Spitzer's infrared array camera and multiband imaging photometer (blue is 3.6-micron light; green is 8.0 microns; and red is combination of 24-, 70- and 160-micron light). The blue color mainly traces old stars. The green color traces emission from organic dust grains (mainly polycyclic aromatic hydrocarbons). The red traces emission from larger, cooler dust grains. </p> The image was taken as part of the Spitzer Legacy program known as SAGE-SMC: Surveying the Agents of Galaxy Evolution in the Tidally-Stripped, Low Metallicity Small Magellanic Cloud.</div></td> </tr> <tr> <td id="fileinfotpl_date" class="fileinfo-paramfield" lang="en">Date</td> <td lang="en"> <time class="dtstart" datetime="2010-01-05" lang="en" dir="ltr" style="white-space:nowrap">5 January 2010</time></td> </tr> <tr> <td id="fileinfotpl_src" class="fileinfo-paramfield" lang="en">Source</td> <td> <a rel="nofollow" class="external free" href="http://www.spitzer.caltech.edu/images/2872-ssc2010-02a-Little-Galaxy-Explored">http://www.spitzer.caltech.edu/images/2872-ssc2010-02a-Little-Galaxy-Explored</a></td> </tr> <tr> <td id="fileinfotpl_aut" class="fileinfo-paramfield" lang="en">Author</td> <td> NASA/JPL-Caltech/K. Gordon (STScI)</td> </tr> </tbody></table> </div> <p>Image use policy: <a rel="nofollow" class="external free" href="http://www.spitzer.caltech.edu/info/18-Image-Use-Policy">http://www.spitzer.caltech.edu/info/18-Image-Use-Policy</a> </p> <div class="mw-heading mw-heading2"><h2 id="Licensing">Licensing</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=File:Little_Galaxy_Explored.jpg&action=edit&section=2" title="Edit section: Licensing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="licensetpl" style="display:none"> <tbody><tr> <td><span class="licensetpl_short">Public domain</span><span class="licensetpl_long">Public domain</span><span class="licensetpl_link_req">false</span><span class="licensetpl_attr_req">false</span> </td></tr></tbody></table> <table style="width: 100%; clear: both; margin: 0.5em auto; background-color: var(--background-color-neutral-subtle, #f7f8ff); color: var(--color-base, #202122); border: var(--border-subtle, 2px solid #8888aa); border-spacing: 8px; padding: 0px;" dir="ltr" class="layouttemplate" lang="en"> <tbody><tr> <td><span typeof="mw:File"><span title="Public domain"><img alt="Public domain" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/64px-PD-icon.svg.png" decoding="async" width="64" height="64" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/96px-PD-icon.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/128px-PD-icon.svg.png 2x" data-file-width="196" data-file-height="196" /></span></span> </td> <td><i>This file is in the <b><a href="https://en.wikipedia.org/wiki/public_domain" class="extiw" title="w:public domain">public domain</a></b> in the United States because it was solely created by <a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="w:NASA">NASA</a>. NASA copyright policy states that "NASA material is not protected by copyright <b>unless noted</b>". (See <a href="/wiki/Template:PD-USGov" title="Template:PD-USGov">Template:PD-USGov</a>, <a rel="nofollow" class="external text" href="https://www.nasa.gov/multimedia/guidelines/index.html">NASA copyright policy page</a> or <a rel="nofollow" class="external text" href="https://www.jpl.nasa.gov/imagepolicy/">JPL Image Use Policy</a>.)</i> </td> <td><figure class="mw-halign-right noresize" typeof="mw:File"><span><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e5/NASA_logo.svg/64px-NASA_logo.svg.png" decoding="async" width="64" height="54" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e5/NASA_logo.svg/96px-NASA_logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e5/NASA_logo.svg/128px-NASA_logo.svg.png 2x" data-file-width="110" data-file-height="92" /></span><figcaption></figcaption></figure> </td></tr> <tr> <td><figure class="mw-halign-left" typeof="mw:File"><span><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dialog-warning.svg/50px-Dialog-warning.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dialog-warning.svg/75px-Dialog-warning.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Dialog-warning.svg/100px-Dialog-warning.svg.png 2x" data-file-width="48" data-file-height="48" /></span><figcaption></figcaption></figure> </td> <td><small><b>Warnings:</b></small><br /><div style="font-size:85%;"> <ul><li>Use of <a href="https://en.wikipedia.org/wiki/NASA_logo" class="extiw" title="w:NASA logo">NASA logos</a>, insignia and emblems is restricted per U.S. law <a rel="nofollow" class="external text" href="https://www.govinfo.gov/app/details/CFR-2021-title14-vol5/CFR-2021-title14-vol5-part1221/summary">14 CFR 1221</a>.</li> <li>The NASA website hosts a large number of images from the <a href="https://en.wikipedia.org/wiki/Soviet_space_program" class="extiw" title="w:Soviet space program">Soviet</a>/<a href="https://en.wikipedia.org/wiki/Russian_Federal_Space_Agency" class="extiw" title="w:Russian Federal Space Agency">Russian space agency</a>, and other non-American space agencies. These are <i>not necessarily</i> in the public domain.</li> <li>Materials based on <a href="https://en.wikipedia.org/wiki/Hubble_Space_Telescope" class="extiw" title="w:Hubble Space Telescope">Hubble Space Telescope</a> data may be copyrighted if they are not explicitly produced by the <a href="https://en.wikipedia.org/wiki/Space_Telescope_Science_Institute" class="extiw" title="w:Space Telescope Science Institute">STScI</a>.<a rel="nofollow" class="external autonumber" href="http://hubblesite.org/copyright/">[1]</a> See also <a href="/wiki/Template:PD-Hubble" title="Template:PD-Hubble"><span style="font-family:monospace,monospace;">{{PD-Hubble}}</span></a> and <a href="/wiki/Template:Cc-Hubble" class="mw-redirect" title="Template:Cc-Hubble"><span style="font-family:monospace,monospace;">{{Cc-Hubble}}</span></a>.</li> <li>The <a href="https://en.wikipedia.org/wiki/Solar_and_Heliospheric_Observatory" class="extiw" title="w:Solar and Heliospheric Observatory">SOHO (ESA & NASA)</a> joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. <a rel="nofollow" class="external autonumber" href="https://sohowww.nascom.nasa.gov/data/summary/copyright.html">[2]</a></li> <li>Images featured on the <i><a href="https://en.wikipedia.org/wiki/Astronomy_Picture_of_the_Day" class="extiw" title="w:Astronomy Picture of the Day">Astronomy Picture of the Day</a></i> (APOD) web site may be copyrighted. <a rel="nofollow" class="external autonumber" href="https://apod.nasa.gov/apod/lib/about_apod.html#srapply">[3]</a></li> <li>The <a href="https://en.wikipedia.org/wiki/National_Space_Science_Data_Center" class="extiw" title="w:National Space Science Data Center">National Space Science Data Center</a> (NSSDC) site has been known to host <a href="/wiki/Commons:Village_pump/Copyright/Archive/2014/08#Copyright_status_of_File:Venera_13_-_ven13right.png" title="Commons:Village pump/Copyright/Archive/2014/08">copyrighted content</a>. Its <a rel="nofollow" class="external text" href="https://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-faq.html#use">photo gallery FAQ</a> states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."</li></ul></div> </td></tr></tbody></table>    </div></div><h2 id="filehistory">File history</h2> <div id="mw-imagepage-section-filehistory"> <p>Click on a date/time to view the file as it appeared at that time. </p> <table class="wikitable filehistory"> <tr><th></th><th>Date/Time</th><th>Thumbnail</th><th>Dimensions</th><th>User</th><th>Comment</th></tr> <tr><td>current</td><td class="filehistory-selected" style="white-space: nowrap;"><a href="https://upload.wikimedia.org/wikipedia/commons/e/ee/Little_Galaxy_Explored.jpg">23:34, 13 April 2016</a></td><td><a href="https://upload.wikimedia.org/wikipedia/commons/e/ee/Little_Galaxy_Explored.jpg"><img alt="Thumbnail for version as of 23:34, 13 April 2016" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Little_Galaxy_Explored.jpg/120px-Little_Galaxy_Explored.jpg?20160413233440" decoding="async" loading="lazy" width="120" height="108" data-file-width="7801" data-file-height="7021" /></a></td><td>7,801 × 7,021 <span style="white-space: nowrap;">(22.43 MB)</span></td><td><a href="/w/index.php?title=User:Lithopsian&action=edit&redlink=1" class="new mw-userlink" title="User:Lithopsian (page does not exist)"><bdi>Lithopsian</bdi></a><span style="white-space: nowrap;"> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:Lithopsian" class="mw-usertoollinks-talk" title="User talk:Lithopsian">talk</a> | <a href="/wiki/Special:Contributions/Lithopsian" class="mw-usertoollinks-contribs" title="Special:Contributions/Lithopsian">contribs</a>)</span></span></td><td dir="ltr">Rotate 180 degrees, which works better in the only Wikipedia article currently linking this image. North is now up.</td></tr> <tr><td></td><td style="white-space: nowrap;"><a href="https://upload.wikimedia.org/wikipedia/commons/archive/e/ee/20160413233434%21Little_Galaxy_Explored.jpg">21:42, 13 April 2016</a></td><td><a href="https://upload.wikimedia.org/wikipedia/commons/archive/e/ee/20160413233434%21Little_Galaxy_Explored.jpg"><img alt="Thumbnail for version as of 21:42, 13 April 2016" src="https://upload.wikimedia.org/wikipedia/commons/thumb/archive/e/ee/20160413233434%21Little_Galaxy_Explored.jpg/120px-Little_Galaxy_Explored.jpg" decoding="async" loading="lazy" width="120" height="108" data-file-width="7801" data-file-height="7021" /></a></td><td>7,801 × 7,021 <span style="white-space: nowrap;">(41.08 MB)</span></td><td><a href="/w/index.php?title=User:Lithopsian&action=edit&redlink=1" class="new mw-userlink" title="User:Lithopsian (page does not exist)"><bdi>Lithopsian</bdi></a><span style="white-space: nowrap;"> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:Lithopsian" class="mw-usertoollinks-talk" title="User talk:Lithopsian">talk</a> | <a href="/wiki/Special:Contributions/Lithopsian" class="mw-usertoollinks-contribs" title="Special:Contributions/Lithopsian">contribs</a>)</span></span></td><td dir="ltr">Higher resolution unframed version of the image</td></tr> <tr><td></td><td style="white-space: nowrap;"><a href="https://upload.wikimedia.org/wikipedia/commons/archive/e/ee/20160413214205%21Little_Galaxy_Explored.jpg">20:28, 13 June 2011</a></td><td><a href="https://upload.wikimedia.org/wikipedia/commons/archive/e/ee/20160413214205%21Little_Galaxy_Explored.jpg"><img alt="Thumbnail for version as of 20:28, 13 June 2011" src="https://upload.wikimedia.org/wikipedia/commons/thumb/archive/e/ee/20160413214205%21Little_Galaxy_Explored.jpg/96px-Little_Galaxy_Explored.jpg" decoding="async" loading="lazy" width="96" height="120" data-file-width="2400" data-file-height="3000" /></a></td><td>2,400 × 3,000 <span style="white-space: nowrap;">(8.89 MB)</span></td><td><a href="/w/index.php?title=User:Spitzersteph&action=edit&redlink=1" class="new mw-userlink" title="User:Spitzersteph (page does not exist)"><bdi>Spitzersteph</bdi></a><span style="white-space: nowrap;"> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:Spitzersteph" class="mw-usertoollinks-talk" title="User talk:Spitzersteph">talk</a> | <a href="/wiki/Special:Contributions/Spitzersteph" class="mw-usertoollinks-contribs" title="Special:Contributions/Spitzersteph">contribs</a>)</span></span></td><td dir="ltr"></td></tr> </table> </div> <div class="mw-imagepage-upload-links"><p id="mw-imagepage-upload-disallowed">You cannot overwrite this file.</p></div><h2 id="filelinks">File usage on Commons</h2> <div id='mw-imagepage-section-linkstoimage'> <p>The following page uses this file: </p><ul class="mw-imagepage-linkstoimage"> <li class="mw-imagepage-linkstoimage-ns4"><a 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