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class="vector-toc-numb">2</span> <span>Justification</span> </div> </a> <ul id="toc-Justification-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-History" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#History"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>History</span> </div> </a> <ul id="toc-History-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Planetary_SETI" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Planetary_SETI"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Planetary SETI</span> </div> </a> <ul id="toc-Planetary_SETI-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Probe_SETI,_or_SETA" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Probe_SETI,_or_SETA"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Probe SETI, or SETA</span> </div> </a> <ul id="toc-Probe_SETI,_or_SETA-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Dysonian_SETI" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Dysonian_SETI"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Dysonian SETI</span> </div> </a> <ul id="toc-Dysonian_SETI-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Fringe_theories" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Fringe_theories"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Fringe theories</span> </div> </a> <ul id="toc-Fringe_theories-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Science_fiction" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Science_fiction"> <div 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</div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Xenoarchaeology</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. 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class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Hypothetical form of archaeology of remnants of alien civilizations</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For alleged archaeological remains on Earth of extraterrestrial visitors, see <a href="/wiki/Ancient_astronauts" title="Ancient astronauts">Ancient astronauts</a>.</div> <p><b>Xenoarchaeology</b>, a branch of <a href="/wiki/Xenology" class="mw-redirect" title="Xenology">xenology</a> dealing with <a href="/wiki/Extraterrestrial_life" title="Extraterrestrial life">extraterrestrial cultures</a>, is a <a href="/wiki/Protoscience" title="Protoscience">hypothetical</a> form of <a href="/wiki/Archaeology" title="Archaeology">archaeology</a> that exists mainly in works of science fiction. The field is concerned with the study of the material remains to reconstruct and interpret past life-ways of alien civilizations. Xenoarchaeology is not currently practiced by mainstream archaeologists due to the current lack of any material for the discipline to study. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Etymology">Etymology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=1" title="Edit section: Etymology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The name derives from <a href="/wiki/Greek_language" title="Greek language">Greek</a> <i>xenos</i> (ξένος) which means 'stranger, alien', and <a href="/wiki/Archaeology" title="Archaeology">archaeology</a> 'study of ancients'. </p><p>Xenoarchaeology is sometimes called <i>astroarchaeology</i> or <i>exoarchaeology</i>, although some would argue that the prefix exo- would be more correctly applied to the study of human activities in a space environment.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Other names for xenoarchaeology, or specialised fields of interest, include Probe <a href="/wiki/SETI" class="mw-redirect" title="SETI">SETI</a> (Search for Extra-Terrestrial Intelligence), extraterrestrial archaeology, <a href="/wiki/Space_archaeology" title="Space archaeology">space archaeology</a>, SETA (Search for Extra-Terrestrial Artifacts), Dysonian SETI, Planetary SETI, SETT (Search for Extra-Terrestrial Technology), SETV (Search for Extra-Terrestrial Visitation),<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> extraterrestrial anthropology, areoarchaeology and selenoarchaeology.<sup id="cite_ref-matthews_3-0" class="reference"><a href="#cite_note-matthews-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Justification">Justification</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=2" title="Edit section: Justification"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>It is arguably the case that, due to the immense distances between stars, any evidence we discover of extraterrestrial intelligence, whether it be an artifact or an electromagnetic signal, may come from a long-vanished civilization. Thus the entire SETI project can be seen as a form of archaeology.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Additionally, due to the extreme <a href="/wiki/Age_of_the_universe" title="Age of the universe">age of the universe</a>, there may be a reasonable expectation for <a href="/wiki/Astrobiology" title="Astrobiology">astrobiology</a> research to produce evidence of extinct <a href="/wiki/Extraterrestrial_life" title="Extraterrestrial life">alien</a> life prior to the discovery of alien life itself.<sup id="cite_ref-mcgee_7-0" class="reference"><a href="#cite_note-mcgee-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>The study of alien cultures might offer us glimpses into our own species' past or future development.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>Vicky Walsh argued for the existence of "exo-artifacts" using the <a href="/wiki/Mediocrity_principle" title="Mediocrity principle">principle of mediocrity</a> and the <a href="/wiki/Drake_equation" title="Drake equation">Drake equation</a>. She proposed that a theoretical and speculative field of archaeology be established in order to test outlandish claims and to prepare for a time when undeniably extraterrestrial artifacts needed to be analysed. "If it is possible to construct an abstract archaeology that can be tested and refined on earth and then applied to areas beyond our planet, then the claims for ETI remains on the moon and Mars may really be evaluated in light of established archaeological theory and analysis".<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>Ben McGee similarly proposed the creation of a set of interdisciplinary, proactive xenoarchaeological guidelines, arguing that identifying suspected artifacts of astrobiology is all that is required to justify establishing a methodology for xenoarchaeology. He emphasized the necessity of proactive xenoarchaeological work in order to avoid future bias, mischaracterization, and information mismanagement, and he cites three scenarios under which such a methodology or set of guidelines would be useful, those being "<a href="/wiki/Remote_sensing" title="Remote sensing">remote sensing</a>" of a potential xenoarchaeological artifact, encountering an artifact during "human exploration," and "terrestrial interception" of an artifact.<sup id="cite_ref-mcgee_7-1" class="reference"><a href="#cite_note-mcgee-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>Greg Fewer has argued that archaeological techniques should be used to evaluate alleged UFO landing or crash sites, such as <a href="/wiki/Roswell_Incident" class="mw-redirect" title="Roswell Incident">Roswell</a>.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=3" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The origins of the field have been traced<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> to theories about a hypothetical Martian civilization based on observations of what were perceived as <a href="/wiki/Martian_canals" title="Martian canals">canals on Mars</a>. These theories, of which Percival Lowell was the most famous exponent, were apparently inspired by a mistranslation of a quote by <a href="/wiki/Giovanni_Schiaparelli" title="Giovanni Schiaparelli">Giovanni Schiaparelli</a>. </p><p>The 1997 Theoretical Archaeology Group conference featured a session on "archaeology and science fiction".<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p><p>The 2004 annual meeting of the <a href="/wiki/American_Anthropological_Association" title="American Anthropological Association">American Anthropological Association</a> featured a session <i>Anthropology, Archaeology and Interstellar Communication</i>.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Planetary_SETI">Planetary SETI</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=4" title="Edit section: Planetary SETI"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Planetary SETI is concerned with the search for extraterrestrial structures on the surface of bodies in the <a href="/wiki/Solar_System" title="Solar System">Solar System</a>. Claims for evidence of extraterrestrial artifacts can be divided into three groups, the Moon, Mars, and the other planets and their satellites.<sup id="cite_ref-matthews_3-1" class="reference"><a href="#cite_note-matthews-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Examples of sites of interest include the "bridge" sighted in the <a href="/wiki/Mare_Crisium" title="Mare Crisium">Mare Crisium</a> in 1953, and the "Blair Cuspids", "an unusual arrangement of seven spirelike objects of varying heights" at the western edge of the <i><a href="/wiki/Mare_Tranquillitatis" title="Mare Tranquillitatis">Mare Tranquillitatis</a></i>, photographed by the <a href="/wiki/Lunar_Orbiter_2" title="Lunar Orbiter 2">Lunar Orbiter 2</a> on 20 November 1966.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> In 2006, Ian Crawford proposed that a search for alien artifacts be conducted on the Moon.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Percival_Lowell" title="Percival Lowell">Percival Lowell</a>'s mistaken identification of <a href="/wiki/Martian_canals" title="Martian canals">Martian canals</a><sup id="cite_ref-NYT-20151001_17-0" class="reference"><a href="#cite_note-NYT-20151001-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> was an early attempt to detect and study an alien culture from its supposed physical remains.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (March 2020)">citation needed</span></a></i>]</sup> More recently, there was interest in the supposed <a href="/wiki/Face_on_Mars" class="mw-redirect" title="Face on Mars">Face on Mars</a>, an example of the psychological phenomenon of <a href="/wiki/Pareidolia" title="Pareidolia">pareidolia</a>.<sup id="cite_ref-cnnface_18-0" class="reference"><a href="#cite_note-cnnface-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </p><p>The Society for Planetary SETI Research is a loose organization of researchers interested in this field. The organization does not endorse any particular conclusions drawn by its members on particular sites.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Probe_SETI,_or_SETA"><span id="Probe_SETI.2C_or_SETA"></span>Probe SETI, or SETA</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=5" title="Edit section: Probe SETI, or SETA"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Further information: <a href="/wiki/Bracewell_probe" title="Bracewell probe">Bracewell probe</a></div> <p>A great deal of research and writing has been done, and some searches conducted for extraterrestrial probes in the Solar System.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> This followed the work of <a href="/wiki/Ronald_N._Bracewell" title="Ronald N. Bracewell">Ronald N. Bracewell</a>. </p><p><a href="/wiki/Robert_Freitas" title="Robert Freitas">Robert Freitas</a>,<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Christopher_Rose_(professor)" class="mw-redirect" title="Christopher Rose (professor)">Christopher Rose</a> and <a href="/wiki/Gregory_Wright_(astrophysicist)" title="Gregory Wright (astrophysicist)">Gregory Wright</a> have argued that interstellar probes can be a more energy-efficient means of communication than electromagnetic broadcasts.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p><p>If so, a solar centric Search for Extraterrestrial Artifacts (SETA)<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> would seem to be favored over the more traditional radio or optical searches. Robert A. Freitas coined the term SETA in the 1980s.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </p><p>On the basis that the Earth-Moon or Sun-Earth <a href="/wiki/Libration_orbit" class="mw-redirect" title="Libration orbit">libration orbits</a> might constitute convenient parking places for automated extraterrestrial probes, unsuccessful searches were conducted by Freitas and Valdes.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Dysonian_SETI">Dysonian SETI</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=6" title="Edit section: Dysonian SETI"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In a 1960 paper, <a href="/wiki/Freeman_Dyson" title="Freeman Dyson">Freeman Dyson</a> proposed the idea of a <a href="/wiki/Dyson_sphere" title="Dyson sphere">Dyson sphere</a>, a type of extraterrestrial artifact able to be searched for and studied at interstellar distances. Following that paper, several searches have been conducted.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </p><p>In a 2005 paper, Luc Arnold proposed a means of detecting smaller, though still mega-scale, artifacts from their distinctive transit <a href="/wiki/Light_curve" title="Light curve">light curve</a> signature.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> <i>(see <a href="/wiki/Astroengineering" class="mw-redirect" title="Astroengineering">Astroengineering</a>)</i>. </p> <div class="mw-heading mw-heading2"><h2 id="Fringe_theories">Fringe theories</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=7" title="Edit section: Fringe theories"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A subculture of enthusiasts studies purported structures on the <a href="/wiki/Moon" title="Moon">Moon</a> or <a href="/wiki/Mars" title="Mars">Mars</a>. These controversial "structures" (such as the <a href="/wiki/Face_on_Mars" class="mw-redirect" title="Face on Mars">Face on Mars</a>) are not accepted as more than natural features by most scientists, examples of the <a href="/wiki/Pareidolia" title="Pareidolia">pareidolia</a> phenomenon. </p><p>Palaeocontact or <a href="/wiki/Ancient_astronauts" title="Ancient astronauts">ancient astronaut</a> theories, espoused by <a href="/wiki/Erich_von_D%C3%A4niken" title="Erich von Däniken">Erich von Däniken</a> and others, are further examples of fringe theories. These claim that the Earth was visited in prehistoric times by extraterrestrial beings. </p> <div class="mw-heading mw-heading2"><h2 id="Science_fiction">Science fiction</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=8" title="Edit section: Science fiction"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Unreferenced_section plainlinks metadata ambox ambox-content ambox-Unreferenced" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>does not <a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">cite</a> any <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">sources</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Xenoarchaeology" title="Special:EditPage/Xenoarchaeology">improve this section</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and <a href="/wiki/Wikipedia:Verifiability#Burden_of_evidence" title="Wikipedia:Verifiability">removed</a>.</span> <span class="date-container"><i>(<span class="date">January 2020</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>Xenoarchaeological themes are common in science fiction. Works about the exploration of enigmatic extraterrestrial artifacts have been satirically categorized as <a href="/wiki/Big_Dumb_Object" title="Big Dumb Object">Big Dumb Object</a> stories. </p><p>Some of the more prominent examples of xenoarchaeological fiction include Arthur C. Clarke's novel <i><a href="/wiki/Rendezvous_with_Rama" title="Rendezvous with Rama">Rendezvous with Rama</a></i>, H. Beam Piper's short story <i><a href="/wiki/Omnilingual" title="Omnilingual">Omnilingual</a></i>, and Charles Sheffield's <a href="/w/index.php?title=Heritage_Universe&action=edit&redlink=1" class="new" title="Heritage Universe (page does not exist)">Heritage Universe</a> series. </p> <div class="mw-heading mw-heading3"><h3 id="Novels">Novels</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=9" title="Edit section: Novels"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></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"> <ul><li><i><a href="/wiki/2001:_A_Space_Odyssey_(novel)" title="2001: A Space Odyssey (novel)">2001: A Space Odyssey</a></i> by <a href="/wiki/Arthur_C._Clarke" title="Arthur C. Clarke">Arthur C. Clarke</a></li> <li><i><a href="/wiki/Broken_Angels_(novel)" title="Broken Angels (novel)">Broken Angels</a></i> by <a href="/wiki/Richard_Morgan_(author)" class="mw-redirect" title="Richard Morgan (author)">Richard Morgan</a></li> <li><i><a href="/wiki/Gateway_(novel)" title="Gateway (novel)">Gateway</a></i> by <a href="/wiki/Fred_Pohl" class="mw-redirect" title="Fred Pohl">Fred Pohl</a></li> <li><i>Grass</i> by <a href="/wiki/Sheri_S._Tepper" title="Sheri S. Tepper">Sheri S. Tepper</a></li> <li><i><a href="/wiki/Heritage_Trilogy" title="Heritage Trilogy">Heritage Trilogy</a></i> by <a href="/wiki/William_H._Keith,_Jr." class="mw-redirect" title="William H. Keith, Jr.">Ian Douglas</a></li> <li><i><a href="/wiki/Noon_Universe" title="Noon Universe">Noon Universe</a></i> by <a href="/wiki/Strugatsky" class="mw-redirect" title="Strugatsky">Strugatsky</a> brothers.</li> <li><i><a href="/wiki/Rendezvous_With_Rama" class="mw-redirect" title="Rendezvous With Rama">Rendezvous With Rama</a></i> by <a href="/wiki/Arthur_C._Clarke" title="Arthur C. Clarke">Arthur C. Clarke</a></li> <li><i><a href="/wiki/Revelation_Space" title="Revelation Space">Revelation Space</a></i> by <a href="/wiki/Alastair_Reynolds" title="Alastair Reynolds">Alastair Reynolds</a></li> <li><i><a href="/wiki/Ringworld" title="Ringworld">Ringworld</a></i> (and its sequels) by <a href="/wiki/Larry_Niven" title="Larry Niven">Larry Niven</a></li> <li><i><a href="/wiki/Saga_of_Seven_Suns" class="mw-redirect" title="Saga of Seven Suns">Saga of Seven Suns</a></i> (Most notably Book 1: Hidden Empire) by <a href="/wiki/Kevin_J._Anderson" title="Kevin J. Anderson">Kevin J. Anderson</a></li> <li><i><a href="/wiki/Strata_(novel)" title="Strata (novel)">Strata</a></i> by <a href="/wiki/Terry_Pratchett" title="Terry Pratchett">Terry Pratchett</a></li> <li><i><a href="/wiki/The_Engines_of_God" title="The Engines of God">The Engines of God</a></i> by <a href="/wiki/Jack_McDevitt" title="Jack McDevitt">Jack McDevitt</a></li> <li><i>The <a href="/wiki/Gaea_Trilogy" class="mw-redirect" title="Gaea Trilogy">Gaea Trilogy</a></i> by <a href="/wiki/John_Varley_(author)" title="John Varley (author)">John Varley</a></li> <li>The <a href="/wiki/Giants_series" class="mw-redirect" title="Giants series">Giants series</a> by <a href="/wiki/James_P._Hogan_(writer)" title="James P. Hogan (writer)">James P. Hogan</a></li> <li><i><a href="/wiki/The_Hercules_Text" title="The Hercules Text">The Hercules Text</a></i> by <a href="/wiki/Jack_McDevitt" title="Jack McDevitt">Jack McDevitt</a></li> <li>The novels in the <a href="/w/index.php?title=Heritage_Universe&action=edit&redlink=1" class="new" title="Heritage Universe (page does not exist)">Heritage Universe</a> by <a href="/wiki/Charles_Sheffield" title="Charles Sheffield">Charles Sheffield</a></li> <li><i>The Past of Forever</i> (Children of the Stars, Book 4) by <a href="/wiki/Juanita_Coulson" title="Juanita Coulson">Juanita Coulson</a></li> <li><i>The Season of Passage</i> by <a href="/wiki/Christopher_Pike_(author)" title="Christopher Pike (author)">Christopher Pike</a></li> <li><i><a href="/wiki/The_Voyage_of_the_Space_Beagle" title="The Voyage of the Space Beagle">The Voyage of the Space Beagle</a></i> by <a href="/wiki/A._E._van_Vogt" title="A. E. van Vogt">A. E. van Vogt</a></li></ul> </div> <div class="mw-heading mw-heading3"><h3 id="Short_stories">Short stories</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=10" title="Edit section: Short stories"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>"<a href="/wiki/At_the_Mountains_of_Madness" title="At the Mountains of Madness">At the Mountains of Madness</a>" by <a href="/wiki/H._P._Lovecraft" title="H. P. Lovecraft">H. P. Lovecraft</a></li> <li>"Old Testament" by <a href="/wiki/Jerome_Bixby" title="Jerome Bixby">Jerome Bixby</a></li> <li>"<a href="/wiki/Omnilingual" title="Omnilingual">Omnilingual</a>" by <a href="/wiki/H._Beam_Piper" title="H. Beam Piper">H. Beam Piper</a></li> <li>"<a href="/wiki/The_Sentinel_(short_story)" title="The Sentinel (short story)">The Sentinel</a>" by <a href="/wiki/Arthur_C._Clarke" title="Arthur C. Clarke">Arthur C. Clarke</a></li> <li>"The Vaults of Yoh-Vombis" by <a href="/wiki/Clark_Ashton_Smith" title="Clark Ashton Smith">Clark Ashton Smith</a></li> <li>"The Adventure of Tintin: <a href="/wiki/Flight_714_to_Sydney" title="Flight 714 to Sydney">Flight 714 to Sydney</a>" by <a href="/wiki/Herge" class="mw-redirect" title="Herge">Herge</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Video_games">Video games</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=11" title="Edit section: Video games"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col"> <ul><li><i><a href="/wiki/Alien_Legacy" title="Alien Legacy">Alien Legacy</a></i></li> <li><i><a href="/wiki/Aliens_versus_Predator_(video_game)" class="mw-redirect" title="Aliens versus Predator (video game)">Aliens versus Predator</a></i></li> <li><i><a href="/wiki/Aliens_vs._Predator_(video_game)" class="mw-redirect" title="Aliens vs. Predator (video game)">Aliens vs. Predator</a></i></li> <li><i><a href="/wiki/Astroneer" title="Astroneer">Astroneer</a></i></li> <li><i><a href="/wiki/Borderlands_(video_game)" title="Borderlands (video game)">Borderlands</a></i></li> <li><i><a href="/wiki/Civilization:_Call_to_Power" title="Civilization: Call to Power">Civilization: Call to Power</a></i></li> <li><i><a href="/wiki/Dead_Space_(video_game)" class="mw-redirect" title="Dead Space (video game)">Dead Space</a></i></li> <li><i><a href="/wiki/Doom_3" title="Doom 3">Doom 3</a></i></li> <li><i><a href="/wiki/Freelancer_(computer_game)" class="mw-redirect" title="Freelancer (computer game)">Freelancer</a></i></li> <li><i><a href="/wiki/FreeSpace" class="mw-redirect" title="FreeSpace">FreeSpace</a></i></li> <li><i><a href="/wiki/Gateway_(video_game)" title="Gateway (video game)">Gateway</a></i></li> <li><i><a href="/wiki/Halo_(series)" class="mw-redirect" title="Halo (series)">Halo</a></i> series</li> <li><i><a href="/wiki/Marathon_2:_Durandal" title="Marathon 2: Durandal">Marathon 2: Durandal</a></i></li> <li><i><a href="/wiki/Mass_Effect" title="Mass Effect">Mass Effect</a></i></li> <li><i><a href="/wiki/Master_of_Orion" title="Master of Orion">Master of Orion</a></i></li> <li><i><a href="/wiki/Metal_Fatigue_(video_game)" title="Metal Fatigue (video game)">Metal Fatigue</a></i></li> <li><i><a href="/wiki/Outer_Wilds" title="Outer Wilds">Outer Wilds</a></i></li> <li><i><a href="/wiki/Rama_(video_game)" title="Rama (video game)">RAMA</a></i> (based on Clarke's novel)</li> <li><i><a href="/wiki/Resistance_(video_game_series)" title="Resistance (video game series)">Resistance</a></i></li> <li><i><a href="/wiki/Sid_Meier%27s_Alpha_Centauri" title="Sid Meier's Alpha Centauri">Sid Meier's Alpha Centauri</a></i></li> <li><i><a href="/wiki/Star_Trek:_A_Final_Unity" class="mw-redirect" title="Star Trek: A Final Unity">Star Trek: A Final Unity</a></i></li> <li><i><a href="/wiki/Star_Wars_Jedi:_Fallen_Order" title="Star Wars Jedi: Fallen Order">Star Wars Jedi: Fallen Order</a></i></li> <li><i><a href="/wiki/Star_Wars:_Knights_of_the_Old_Republic_(video_game)" title="Star Wars: Knights of the Old Republic (video game)">Star Wars: Knights of the Old Republic</a></i></li> <li><i><a href="/wiki/StarCraft" title="StarCraft">StarCraft</a></i> series</li> <li><i><a href="/wiki/Stellaris_(video_game)" title="Stellaris (video game)">Stellaris</a></i></li> <li><i><a href="/wiki/The_Dig_(video_game)" title="The Dig (video game)">The Dig</a></i></li> <li><i><a href="/w/index.php?title=The_Lacuna_Expanse&action=edit&redlink=1" class="new" title="The Lacuna Expanse (page does not exist)">The Lacuna Expanse</a></i></li> <li><i><a href="/wiki/Wing_Commander:_Privateer" title="Wing Commander: Privateer">Wing Commander: Privateer</a></i></li></ul> </div> <div class="mw-heading mw-heading3"><h3 id="Movies">Movies</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=12" title="Edit section: Movies"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col"> <ul><li><i><a href="/w/index.php?title=A_Genesis_Found_(film)&action=edit&redlink=1" class="new" title="A Genesis Found (film) (page does not exist)">A Genesis Found</a></i></li> <li><i><a href="/wiki/Alien_(film)" title="Alien (film)">Alien</a></i></li> <li><i><a href="/wiki/Alien_vs._Predator_(film)" title="Alien vs. Predator (film)">Alien vs. Predator</a></i></li> <li><i><a href="/wiki/Alien:_Covenant_(film)" class="mw-redirect" title="Alien: Covenant (film)">Alien: Covenant</a></i></li> <li><i><a href="/wiki/Black_Mountain_Side_(film)" title="Black Mountain Side (film)">Black Mountain Side</a></i></li> <li><i><a href="/wiki/Chariots_of_the_Gods_(film)" title="Chariots of the Gods (film)">Chariots of the Gods</a></i></li> <li><i><a href="/wiki/Contact_(1997_American_film)" title="Contact (1997 American film)">Contact</a></i></li> <li><i><a href="/wiki/DC_Extended_Universe" title="DC Extended Universe">DC Extended Universe</a></i></li> <li><i><a href="/wiki/Doom_(film)" title="Doom (film)">Doom</a></i></li> <li><i><a href="/wiki/Eternals_(film)" title="Eternals (film)">Eternals</a></i></li> <li><i><a href="/wiki/Forbidden_Planet" title="Forbidden Planet">Forbidden Planet</a></i></li> <li><i><a href="/wiki/Indiana_Jones_and_the_Kingdom_of_the_Crystal_Skull" title="Indiana Jones and the Kingdom of the Crystal Skull">Indiana Jones and the Kingdom of the Crystal Skull</a></i></li> <li><i><a href="/wiki/Indiana_Jones_and_the_Last_Crusade" title="Indiana Jones and the Last Crusade">Indiana Jones and the Last Crusade</a></i></li> <li><i><a href="/wiki/Indiana_Jones_and_the_Raiders_of_the_Lost_Ark" class="mw-redirect" title="Indiana Jones and the Raiders of the Lost Ark">Indiana Jones and the Raiders of the Lost Ark</a></i></li> <li><i><a href="/wiki/Indiana_Jones_and_the_Temple_of_Doom" title="Indiana Jones and the Temple of Doom">Indiana Jones and the Temple of Doom</a></i></li> <li><i><a href="/wiki/Marvel_Cinematic_Universe" title="Marvel Cinematic Universe">Marvel Cinematic Universe</a></i></li> <li><i><a href="/wiki/Outlander_(film)" title="Outlander (film)">Outlander</a></i></li> <li><i><a href="/wiki/Prometheus_(2012_film)" title="Prometheus (2012 film)">Prometheus</a></i></li> <li><i><a href="/wiki/Sphere_(1998_film)" title="Sphere (1998 film)">Sphere</a></i></li> <li><i><a href="/wiki/Star_Wars" title="Star Wars">Star Wars</a></i></li> <li><i><a href="/wiki/Stargate_(film)" title="Stargate (film)">Stargate</a></i></li> <li><i><a href="/wiki/The_Box_(2009_film)" title="The Box (2009 film)">The Box</a></i></li> <li><i><a href="/wiki/The_Fifth_Element" title="The Fifth Element">The Fifth Element</a></i></li> <li><i><a href="/wiki/The_Last_Lovecraft:_Relic_of_Cthulhu" title="The Last Lovecraft: Relic of Cthulhu">The Last Lovecraft: Relic of Cthulhu</a></i></li> <li><i><a href="/wiki/Total_Recall_(1990_film)" title="Total Recall (1990 film)">Total Recall</a></i></li> <li><i><a href="/wiki/Uncharted_(film)" title="Uncharted (film)">Uncharted</a></i></li></ul> </div> <div class="mw-heading mw-heading3"><h3 id="Television">Television</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=13" title="Edit section: Television"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col" style="column-width: 30em;"> <ul><li><i><a href="/wiki/Ancient_Aliens" title="Ancient Aliens">Ancient Aliens</a></i></li> <li><i><a href="/wiki/Babylon_5" title="Babylon 5">Babylon 5</a></i></li> <li><i><a href="/wiki/Doctor_Who" title="Doctor Who">Doctor Who</a></i></li> <li><i><a href="/wiki/The_Martian_Chronicles_(miniseries)" title="The Martian Chronicles (miniseries)">Martian Chronicles</a></i></li> <li><i><a href="/wiki/Star_Trek" title="Star Trek">Star Trek</a></i></li> <li><i><a href="/wiki/Stargate" title="Stargate">Stargate</a></i></li> <li><i><a href="/wiki/Stargate_SG-1" title="Stargate SG-1">Stargate SG-1</a></i> and its spinoff <i><a href="/wiki/Stargate_Atlantis" title="Stargate Atlantis">Stargate Atlantis</a></i></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=14" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Ancient_astronauts" title="Ancient astronauts">Ancient astronauts</a></li> <li><a href="/wiki/Pseudoarchaeology" title="Pseudoarchaeology">Pseudoarchaeology</a></li> <li><a href="/wiki/Silurian_hypothesis" title="Silurian hypothesis">Silurian hypothesis</a></li> <li><a href="/wiki/Xenolinguistics" class="mw-redirect" title="Xenolinguistics">Xenolinguistics</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=15" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFFreitas" class="citation web cs1">Freitas, Robert. <a rel="nofollow" class="external text" href="http://www.rfreitas.com/Astro/NamingETL.htm">"Naming Extraterrestrial Life"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Naming+Extraterrestrial+Life&rft.aulast=Freitas&rft.aufirst=Robert&rft_id=http%3A%2F%2Fwww.rfreitas.com%2FAstro%2FNamingETL.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AXenoarchaeology" class="Z3988"></span>, retrieved 7 October 2006.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite 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Retrieved <span class="nowrap">7 October</span> 2006</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+the+British+Interplanetary+Society&rft.atitle=The+Search+for+Extraterrestrial+Artifacts+%28SETA%29&rft.volume=36&rft.pages=501-506&rft.date=1983&rft_id=info%3Abibcode%2F1983JBIS...36..501F&rft.aulast=Freitas+Jr.&rft.aufirst=Robert+A.&rft_id=http%3A%2F%2Fwww.rfreitas.com%2FAstro%2FSETAJBISNov1983.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AXenoarchaeology" class="Z3988"></span></span> </li> <li id="cite_note-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-26">^</a></b></span> <span class="reference-text">Csaba Kecskes: <i>Observation of Asteroids for Searching Extraterrestrial Artifacts.</i> in: Viorel Badescu: <i>Asteroids - prospective energy and material resources.</i> Springer, Berlin 2013, <a rel="nofollow" class="external text" href="https://books.google.com/books?id=BWBGAAAAQBAJ&dq=badescu+asteroids+SETA&pg=PA639">page 635</a>. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-3-642-39243-6" title="Special:BookSources/978-3-642-39243-6">978-3-642-39243-6</a>.</span> </li> <li id="cite_note-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-27">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFreitas_Jr.Valdes1980" class="citation journal cs1">Freitas Jr., Robert A.; Valdes, Francisco (1980). <a rel="nofollow" class="external text" href="http://www.rfreitas.com/Astro/SearchIcarus1980.htm">"A Search for Natural or Artificial Objects Located at the Earth-Moon Libration Points"</a>. <i>Icarus</i>. <b>42</b> (3): 442–447. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1980Icar...42..442F">1980Icar...42..442F</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2F0019-1035%2880%2990106-2">10.1016/0019-1035(80)90106-2</a><span class="reference-accessdate">. Retrieved <span class="nowrap">7 October</span> 2006</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=A+Search+for+Natural+or+Artificial+Objects+Located+at+the+Earth-Moon+Libration+Points&rft.volume=42&rft.issue=3&rft.pages=442-447&rft.date=1980&rft_id=info%3Adoi%2F10.1016%2F0019-1035%2880%2990106-2&rft_id=info%3Abibcode%2F1980Icar...42..442F&rft.aulast=Freitas+Jr.&rft.aufirst=Robert+A.&rft.au=Valdes%2C+Francisco&rft_id=http%3A%2F%2Fwww.rfreitas.com%2FAstro%2FSearchIcarus1980.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AXenoarchaeology" class="Z3988"></span></span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-28">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFValdesFreitas_Jr.1983" class="citation journal cs1">Valdes, Francisco; Freitas Jr., Robert A. (1983). <a rel="nofollow" class="external text" href="http://www.rfreitas.com/Astro/SearchIcarus1983.htm">"A Search for Objects near the Earth-Moon Lagrangian Points"</a>. <i>Icarus</i>. <b>53</b> (3): 453–457. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1983Icar...53..453V">1983Icar...53..453V</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2F0019-1035%2883%2990209-9">10.1016/0019-1035(83)90209-9</a><span class="reference-accessdate">. Retrieved <span class="nowrap">7 October</span> 2006</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=A+Search+for+Objects+near+the+Earth-Moon+Lagrangian+Points&rft.volume=53&rft.issue=3&rft.pages=453-457&rft.date=1983&rft_id=info%3Adoi%2F10.1016%2F0019-1035%2883%2990209-9&rft_id=info%3Abibcode%2F1983Icar...53..453V&rft.aulast=Valdes&rft.aufirst=Francisco&rft.au=Freitas+Jr.%2C+Robert+A.&rft_id=http%3A%2F%2Fwww.rfreitas.com%2FAstro%2FSearchIcarus1983.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AXenoarchaeology" class="Z3988"></span></span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</a></b></span> <span class="reference-text">Carrigan, D., <a rel="nofollow" class="external text" href="http://home.fnal.gov/~carrigan/Infrared_Astronomy/Other_searches.htm">Other Dyson Sphere searches</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120716233413/http://home.fnal.gov/~carrigan/Infrared_Astronomy/Other_searches.htm">Archived</a> 16 July 2012 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>, retrieved 7 October 2006.</span> </li> <li id="cite_note-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-30">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFArnold2005" class="citation journal cs1">Arnold, Luc (March 2005). "Transit Lightcurve Signatures of Artificial Objects". <i>The Astrophysical Journal</i>. <b>627</b> (1): 534–539. <a href="/wiki/ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/astro-ph/0503580">astro-ph/0503580</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2005ApJ...627..534A">2005ApJ...627..534A</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F430437">10.1086/430437</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:15396488">15396488</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=Transit+Lightcurve+Signatures+of+Artificial+Objects&rft.volume=627&rft.issue=1&rft.pages=534-539&rft.date=2005-03&rft_id=info%3Aarxiv%2Fastro-ph%2F0503580&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A15396488%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1086%2F430437&rft_id=info%3Abibcode%2F2005ApJ...627..534A&rft.aulast=Arnold&rft.aufirst=Luc&rfr_id=info%3Asid%2Fen.wikipedia.org%3AXenoarchaeology" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Xenoarchaeology&action=edit&section=16" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20060805055558/http://metaresearch.org/solar%20system/cydonia/asom/artifact_html/default.htm">Martian "artificial structures"</a></li> <li><a rel="nofollow" class="external text" href="http://www.spacearchaeology.org/">Space archaeology</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120411164206/http://www.spacearchaeology.org/">Archived</a> 11 April 2012 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></li></ul> <div class="navbox-styles"><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 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Hoare</a></li> <li><a href="/wiki/Heinrich_Schliemann" title="Heinrich Schliemann">Heinrich Schliemann</a></li> <li><a href="/wiki/Arthur_Evans" title="Arthur Evans">Arthur Evans</a></li> <li><a href="/wiki/John_Lloyd_Stephens" title="John Lloyd Stephens">John Lloyd Stephens</a></li> <li><a href="/wiki/William_Henry_Holmes" title="William Henry Holmes">William Henry Holmes</a></li> <li><a href="/wiki/Augustus_Pitt_Rivers" title="Augustus Pitt Rivers">Augustus Pitt Rivers</a></li> <li><a href="/wiki/Flinders_Petrie" title="Flinders Petrie">Flinders Petrie</a></li> <li><a href="/wiki/Mortimer_Wheeler" title="Mortimer Wheeler">Mortimer Wheeler</a></li> <li><a href="/wiki/Dorothy_Garrod" title="Dorothy Garrod">Dorothy Garrod</a></li> <li><a href="/wiki/Max_Uhle" title="Max Uhle">Max Uhle</a></li> <li><a href="/wiki/Alfred_V._Kidder" title="Alfred V. Kidder">Alfred V. Kidder</a></li> <li><a href="/wiki/George_Bass_(archaeologist)" title="George Bass (archaeologist)">George Bass</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Method and theory</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Archaeological_theory" title="Archaeological theory">Archaeological theory</a></li> <li><a href="/wiki/Philosophy_of_archaeology" title="Philosophy of archaeology">Philosophy of archaeology</a></li> <li><a href="/wiki/Archaeological_diving" title="Archaeological diving">Archaeological diving</a></li> <li><a href="/wiki/Archaeological_ethics" title="Archaeological ethics">Archaeological ethics</a></li> <li><a href="/wiki/Conservation_and_restoration_of_archaeological_sites" title="Conservation and restoration of archaeological sites">Conservation and restoration of archaeological sites</a></li> <li><a href="/wiki/Survey_(archaeology)" title="Survey (archaeology)">Survey</a> <ul><li><a href="/wiki/Geophysical_survey_(archaeology)" title="Geophysical survey (archaeology)">geophysical survey</a></li> <li><a href="/wiki/Electrical_resistance_survey" title="Electrical resistance survey">electrical resistance survey</a></li> <li><a href="/wiki/Sondage" title="Sondage">Sondage</a></li></ul></li> <li><a href="/wiki/Burnt_layer" title="Burnt layer">Burnt layer</a></li> <li><a href="/wiki/Archaeological_excavation" title="Archaeological excavation">Excavation</a></li> <li><a href="/wiki/Lithic_analysis" title="Lithic analysis">Lithic analysis</a></li> <li><a href="/wiki/Post-excavation_analysis" title="Post-excavation analysis">Post-excavation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Subfields_of_archaeology" title="Subfields of archaeology">Sub-disciplines</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Chronological</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Prehistoric_archaeology" title="Prehistoric archaeology">Prehistoric</a></li> <li><a href="/wiki/Protohistory" title="Protohistory">Protohistoric</a></li> <li><a href="/wiki/Biblical_archaeology" title="Biblical archaeology">Biblical</a></li> <li><a href="/wiki/Classical_archaeology" title="Classical archaeology">Classical</a></li> <li><a href="/wiki/Medieval_archaeology" title="Medieval archaeology">Medieval</a></li> <li><a href="/wiki/Post-medieval_archaeology" title="Post-medieval archaeology">Post-Medieval</a></li> <li><a href="/wiki/Historical_archaeology" title="Historical archaeology">Historical</a></li> <li><a href="/wiki/Contemporary_archaeology" title="Contemporary archaeology">Contemporary</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Geographic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/African_archaeology" title="African archaeology">African</a></li> <li><a href="/wiki/Archaeology_of_the_Americas" title="Archaeology of the Americas">American</a></li> <li><a href="/wiki/Category:Archaeology_in_Asia" title="Category:Archaeology in Asia">Asian</a></li> <li><a href="/wiki/Australian_archaeology" class="mw-redirect" title="Australian archaeology">Australian</a></li> <li><a href="/wiki/Archaeology_in_Oceania" title="Archaeology in Oceania">Oceanian</a></li> <li><a href="/wiki/Egyptology" title="Egyptology">Egyptian</a></li> <li><a href="/wiki/Assyriology" title="Assyriology">Mesopotamian</a></li> <li><a href="/wiki/Near_Eastern_archaeology" title="Near Eastern archaeology">Near Eastern</a></li> <li><a href="/wiki/Nubiology" title="Nubiology">Nubian</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Methodological</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aerial_archaeology" title="Aerial archaeology">Aerial</a></li> <li><a href="/wiki/Bioarchaeology" title="Bioarchaeology">Bioarchaeology</a> <ul><li><a href="/wiki/Archaeogenetics" title="Archaeogenetics">Archaeogenetics</a></li> <li><a href="/wiki/Medieval_bioarchaeology" title="Medieval bioarchaeology">Medieval</a></li> <li><a href="/wiki/Near_Eastern_bioarchaeology" title="Near Eastern bioarchaeology">Near Eastern</a></li> <li><a href="/wiki/Osteology" title="Osteology">Osteology</a></li> <li><a href="/wiki/Paleopathology" title="Paleopathology">Paleopathology</a></li></ul></li> <li><a href="/wiki/Calceology" title="Calceology">Calceology</a></li> <li><a href="/wiki/Digital_archaeology" title="Digital archaeology">Digital</a> <ul><li><a href="/wiki/Archaeogaming" title="Archaeogaming">Archaeogaming</a></li> <li><a href="/wiki/Computational_archaeology" title="Computational archaeology">Computational</a></li> <li><a href="/wiki/Virtual_archaeology" title="Virtual archaeology">Virtual</a></li></ul></li> <li><a href="/wiki/Environmental_archaeology" title="Environmental archaeology">Environmental</a> <ul><li><a href="/wiki/Geoarchaeology" title="Geoarchaeology">Geoarchaeology</a></li> <li><a href="/wiki/Paleoethnobotany" title="Paleoethnobotany">Paleoethnobotany</a></li> <li><a href="/wiki/Zooarchaeology" title="Zooarchaeology">Zooarchaeology</a></li></ul></li> <li><a href="/wiki/Experimental_archaeology" title="Experimental archaeology">Experimental</a></li> <li><a href="/wiki/Underwater_archaeology" title="Underwater archaeology">Underwater</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Thematic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Archaeoastronomy" title="Archaeoastronomy">Archaeoastronomy</a></li> <li><a href="/wiki/Archaeological_science" title="Archaeological science">Archaeometry</a></li> <li><a href="/wiki/Battlefield_archaeology" title="Battlefield archaeology">Battlefield</a></li> <li><a href="/wiki/Conflict_archaeology" title="Conflict archaeology">Conflict</a></li> <li><a href="/wiki/Feminist_archaeology" title="Feminist archaeology">Feminist</a></li> <li><a href="/wiki/Funerary_archaeology" title="Funerary archaeology">Funerary</a></li> <li><a href="/wiki/Gender_archaeology" title="Gender archaeology">Gender</a></li> <li><a href="/wiki/Indigenous_archaeology" title="Indigenous archaeology">Indigenous</a></li> <li><a href="/wiki/Industrial_archaeology" title="Industrial archaeology">Industrial</a></li> <li><a href="/wiki/Landscape_archaeology" title="Landscape archaeology">Landscape</a></li> <li><a href="/wiki/Maritime_archaeology" title="Maritime archaeology">Maritime</a></li> <li><a href="/wiki/Mortuary_archaeology" title="Mortuary archaeology">Mortuary</a></li> <li><a href="/wiki/Music_archaeology" title="Music archaeology">Music</a></li> <li><a href="/wiki/Nazi_archaeology" title="Nazi archaeology">Nazi</a></li> <li><a href="/wiki/Phenomenology_(archaeology)" title="Phenomenology (archaeology)">Phenomenology</a></li> <li><a href="/wiki/Pseudoarchaeology" title="Pseudoarchaeology">Pseudoarchaeology</a></li> <li><a href="/wiki/Queer_archaeology" title="Queer archaeology">Queer</a></li> <li><a href="/wiki/Transgender_archaeology" title="Transgender archaeology">Transgender</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Lists</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Sites <ul><li><a href="/wiki/List_of_archaeological_sites_by_country" title="List of archaeological sites by country">by country</a></li></ul></li> <li><a href="/wiki/List_of_archaeological_periods" title="List of archaeological periods">Periods</a></li> <li><a href="/wiki/List_of_archaeologists" title="List of archaeologists">Archaeologists</a> <ul><li><a href="/wiki/List_of_Egyptologists" title="List of Egyptologists">Egyptologists</a></li> <li><a href="/wiki/List_of_Assyriologists" title="List of Assyriologists">Assyriologists</a></li> <li><a href="/wiki/Hittitology" title="Hittitology">Hittitologists</a></li></ul></li> <li><a href="/wiki/List_of_archaeology_journals" title="List of archaeology journals">Journals</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Archaeology" title="Category:Archaeology">Category</a></li> <li><span class="nowrap"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/48/P_history.svg/31px-P_history.svg.png" decoding="async" width="31" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/48/P_history.svg/47px-P_history.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/48/P_history.svg/62px-P_history.svg.png 2x" data-file-width="400" data-file-height="360" /></span></span> </span><a href="/wiki/Portal:History" title="Portal:History">History portal</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="UFOs" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:UFOs" title="Template:UFOs"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:UFOs" title="Template talk:UFOs"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:UFOs" title="Special:EditPage/Template:UFOs"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="UFOs" style="font-size:114%;margin:0 4em"><a href="/wiki/Unidentified_flying_object" title="Unidentified flying object">UFOs</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/Ufology" title="Ufology">Ufology</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_reported_UFO_sightings" title="List of reported UFO sightings">Claimed sightings</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">General</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_reported_UFO_sightings" title="List of reported UFO sightings">List of reported UFO sightings</a></li> <li><a href="/wiki/UFO_sightings_in_outer_space" title="UFO sightings in outer space">Sightings in outer space</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">Pre-20th century</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Merkabah_mysticism" title="Merkabah mysticism">Ezekiel's Wheel (circa 622–570 BC)</a></li> <li><a href="/wiki/Airship_of_Clonmacnoise" title="Airship of Clonmacnoise">Airship of Clonmacnoise</a> (740s)</li> <li><a href="/wiki/1561_celestial_phenomenon_over_Nuremberg" title="1561 celestial phenomenon over Nuremberg">1561 celestial phenomenon over Nuremberg</a></li> <li><a href="/wiki/1566_celestial_phenomenon_over_Basel" title="1566 celestial phenomenon over Basel">1566 celestial phenomenon over Basel</a></li> <li><a href="/wiki/1665_celestial_phenomenon_over_Stralsund" title="1665 celestial phenomenon over Stralsund">1665 celestial phenomenon over Stralsund</a></li> <li><a href="/wiki/Bonilla_observation" title="Bonilla observation">José Bonilla observation (1883)</a></li> <li><a href="/wiki/Mystery_airship#The_airship_wave_of_1896-1897" title="Mystery airship">Airship wave (1896–97)</a></li> <li><a href="/wiki/Aurora,_Texas,_UFO_incident" title="Aurora, Texas, UFO incident">Aurora (1897)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">20th century</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Battle_of_Los_Angeles" title="Battle of Los Angeles">Los Angeles (1942)</a></li> <li><a href="/wiki/%C3%84ngelholm_UFO_memorial" title="Ängelholm UFO memorial">Ängelholm UFO memorial (1946)</a></li> <li><a href="/wiki/Kenneth_Arnold_UFO_sighting" title="Kenneth Arnold UFO sighting">Kenneth Arnold (1947)</a></li> <li><a href="/wiki/1947_flying_disc_craze" title="1947 flying disc craze">1947 craze</a></li> <li><a href="/wiki/Flight_105_UFO_sighting" title="Flight 105 UFO sighting">Flight 105 (1947)</a></li> <li><a href="/wiki/Roswell_incident" title="Roswell incident">Roswell (1947)</a></li> <li><a href="/wiki/Rhodes_UFO_photographs" title="Rhodes UFO photographs">Rhodes (1947)</a></li> <li><a href="/wiki/Mantell_UFO_incident" title="Mantell UFO incident">Mantell (1948)</a></li> <li><a href="/wiki/Chiles-Whitted_UFO_encounter" title="Chiles-Whitted UFO encounter">Chiles-Whitted (1948)</a></li> <li><a href="/wiki/Gorman_dogfight" title="Gorman dogfight">Gorman Dogfight (1948)</a></li> <li><a href="/wiki/Mariana_UFO_incident" title="Mariana UFO incident">Mariana (1950)</a></li> <li><a href="/wiki/McMinnville_UFO_photographs" title="McMinnville UFO photographs">McMinnville photographs (1950)</a></li> <li><a href="/wiki/Sperry_UFO_case" class="mw-redirect" title="Sperry UFO case">Sperry (1950)</a></li> <li><a href="/wiki/Lubbock_Lights" title="Lubbock Lights">Lubbock Lights (1951)</a></li> <li><a href="/wiki/Nash-Fortenberry_UFO_sighting" title="Nash-Fortenberry UFO sighting">Nash-Fortenberry (1952)</a></li> <li><a href="/wiki/1952_Washington,_D.C._UFO_incident" class="mw-redirect" title="1952 Washington, D.C. UFO incident">Washington, D.C. (1952)</a></li> <li><a href="/wiki/Flatwoods_monster" title="Flatwoods monster">Flatwoods monster (1952)</a></li> <li><a href="/wiki/Kelly%E2%80%93Hopkinsville_encounter" title="Kelly–Hopkinsville encounter">Kelly–Hopkinsville (1955)</a></li> <li><a href="/wiki/Lakenheath-Bentwaters_incident" title="Lakenheath-Bentwaters incident">Lakenheath-Bentwaters (1956)</a></li> <li><a href="/wiki/Ant%C3%B4nio_Villas_Boas" class="mw-redirect" title="Antônio Villas Boas">Antônio Villas Boas (1957)</a></li> <li><a href="/wiki/Levelland_UFO_case" title="Levelland UFO case">Levelland (1957)</a></li> <li><a href="/wiki/Barney_and_Betty_Hill" class="mw-redirect" title="Barney and Betty Hill">Barney and Betty Hill abduction (1961)</a></li> <li><a href="/wiki/Lonnie_Zamora_incident" title="Lonnie Zamora incident">Lonnie Zamora incident (1964)</a></li> <li><a href="/wiki/Solway_Firth_Spaceman" title="Solway Firth Spaceman">Solway Firth Spaceman (1964)</a></li> <li><a href="/wiki/Exeter_incident" title="Exeter incident">Exeter (1965)</a></li> <li><a href="/wiki/Kecksburg_UFO_incident" title="Kecksburg UFO incident">Kecksburg (1965)</a></li> <li><a href="/wiki/Westall_UFO" title="Westall UFO">Westall (1966)</a></li> <li><a href="/wiki/Falcon_Lake_Incident" title="Falcon Lake Incident">Falcon Lake (1967)</a></li> <li><a href="/wiki/Shag_Harbour_UFO_incident" title="Shag Harbour UFO incident">Shag Harbour (1967)</a></li> <li><a href="/wiki/Jimmy_Carter_UFO_incident" title="Jimmy Carter UFO incident">Jimmy Carter (1969)</a></li> <li><a href="/wiki/Finnish_Air_Force_UFO_sighting" title="Finnish Air Force UFO sighting">Finnish Air Force (1969)</a></li> <li><a href="/wiki/Pascagoula_Abduction" title="Pascagoula Abduction">Pascagoula Abduction (1973)</a></li> <li><a href="/wiki/John_Lennon_UFO_incident" class="mw-redirect" title="John Lennon UFO incident">John Lennon UFO incident (1974)</a></li> <li><a href="/wiki/Travis_Walton_UFO_incident" class="mw-redirect" title="Travis Walton UFO incident">Travis Walton incident (1975)</a></li> <li><a href="/wiki/1976_Tehran_UFO_incident" title="1976 Tehran UFO incident">Tehran (1976)</a></li> <li><a href="/wiki/Petrozavodsk_phenomenon" title="Petrozavodsk phenomenon">Petrozavodsk phenomenon (1977)</a></li> <li><a href="/wiki/Opera%C3%A7%C3%A3o_Prato" title="Operação Prato">Operação Prato (1977)</a></li> <li><a href="/wiki/Zanfretta_UFO_Incident" title="Zanfretta UFO Incident">Zanfretta incident (1978)</a></li> <li><a href="/wiki/Disappearance_of_Frederick_Valentich" title="Disappearance of Frederick Valentich">Valentich disappearance (1978)</a></li> <li><a href="/wiki/Kaikoura_lights" title="Kaikoura lights">Kaikoura Lights (1978)</a></li> <li><a href="/wiki/Robert_Taylor_incident" title="Robert Taylor incident">Robert Taylor incident (1979)</a></li> <li><a href="/wiki/Val_Johnson_incident" title="Val Johnson incident">Val Johnson incident (1979)</a></li> <li><a href="/wiki/Manises_UFO_incident" title="Manises UFO incident">Manises (1979)</a></li> <li><a href="/wiki/Cash%E2%80%93Landrum_incident" title="Cash–Landrum incident">Cash–Landrum incident (1980)</a></li> <li><a href="/wiki/Rendlesham_Forest_incident" title="Rendlesham Forest incident">Rendlesham Forest (1980)</a></li> <li><a href="/wiki/Trans-en-Provence_case" title="Trans-en-Provence case">Trans-en-Provence (1981)</a></li> <li><a href="/wiki/Japan_Air_Lines_Cargo_Flight_1628_incident" title="Japan Air Lines Cargo Flight 1628 incident">Japan Air Lines (1986)</a></li> <li><a href="/wiki/Ilkley_Moor_UFO_incident" title="Ilkley Moor UFO incident">Ilkley Moor (1987)</a></li> <li><a href="/wiki/Voronezh_UFO_incident" title="Voronezh UFO incident">Voronezh incident (1989)</a></li> <li><a href="/wiki/Belgian_UFO_wave" title="Belgian UFO wave">Belgian UFO wave (1990)</a></li> <li><a href="/wiki/Ariel_School_UFO_incident" title="Ariel School UFO incident">Ariel School (1994)</a></li> <li><a href="/wiki/Varginha_UFO_incident" title="Varginha UFO incident">Varginha (1996)</a></li> <li><a href="/wiki/Phoenix_Lights" title="Phoenix Lights">Phoenix Lights (1997)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">21st century</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/USS_Nimitz_UFO_incident" class="mw-redirect" title="USS Nimitz UFO incident">USS <i>Nimitz</i> UFO incident (2004)</a></li> <li><a href="/wiki/UFO_sightings_in_Mexico#2004" title="UFO sightings in Mexico">Campeche, Mexico (2004)</a></li> <li><a href="/wiki/2006_O%27Hare_International_Airport_UFO_sighting" title="2006 O'Hare International Airport UFO sighting">O'Hare Airport (2006)</a></li> <li><a href="/wiki/2007_Alderney_UFO_sighting" title="2007 Alderney UFO sighting">Alderney (2007)</a></li> <li><a href="/wiki/2009_Norwegian_spiral_anomaly" title="2009 Norwegian spiral anomaly">Norway (2009)</a></li> <li><a href="/wiki/USS_Theodore_Roosevelt_UFO_incidents" class="mw-redirect" title="USS Theodore Roosevelt UFO incidents">USS <i>Theodore Roosevelt</i> UFO incidents (2014)</a></li> <li><a href="/wiki/Jetpack_man" title="Jetpack man">Jetpack man (2020–21)</a></li> <li><a href="/wiki/List_of_high-altitude_object_events_in_2023" title="List of high-altitude object events in 2023">High-altitude object events (2023)</a></li> <li><a href="/wiki/David_Grusch_UFO_whistleblower_claims" title="David Grusch UFO whistleblower claims">David Grusch claims (2023)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;"><a href="/wiki/List_of_UFO-related_hoaxes" title="List of UFO-related hoaxes">Confirmed hoaxes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Maury_Island_incident" title="Maury Island incident">Maury Island hoax (1947)</a></li> <li><a href="/wiki/Twin_Falls_saucer_hoax" title="Twin Falls saucer hoax">Twin Falls, Idaho hoax (1947)</a></li> <li><a href="/wiki/Aztec,_New_Mexico_UFO_hoax" class="mw-redirect" title="Aztec, New Mexico UFO hoax">Aztec, New Mexico hoax (1949)</a></li> <li><a href="/wiki/1967_British_flying_saucer_hoax" title="1967 British flying saucer hoax">Southern England (1967)</a></li> <li><a href="/wiki/Majestic_12" title="Majestic 12">Majestic 12 (1985)</a></li> <li><a href="/wiki/Gulf_Breeze_UFO_incident" title="Gulf Breeze UFO incident">Gulf Breeze (1987–88)</a></li> <li><a href="/wiki/Alien_Autopsy_(1995_film)" title="Alien Autopsy (1995 film)">Alien Autopsy (1995 film)</a></li> <li><a href="/wiki/Morristown_UFO_hoax" title="Morristown UFO hoax">Morristown (2009)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sightings by country</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/UFO_sightings_in_Africa" title="UFO sightings in Africa">Africa</a> (<a href="/wiki/UFO_sightings_in_South_Africa" title="UFO sightings in South Africa">South Africa</a>)</li> <li><a href="/wiki/UFO_sightings_in_Albania" title="UFO sightings in Albania">Albania</a></li> <li><a href="/wiki/UFO_sightings_in_Argentina" title="UFO sightings in Argentina">Argentina</a></li> <li><a href="/wiki/UFO_sightings_in_Australia" title="UFO sightings in Australia">Australia</a></li> <li><a href="/wiki/UFO_sightings_in_Belarus" title="UFO sightings in Belarus">Belarus</a></li> <li><a href="/wiki/UFO_sightings_in_Belgium" title="UFO sightings in Belgium">Belgium</a></li> <li><a href="/wiki/UFO_sightings_in_Brazil" title="UFO sightings in Brazil">Brazil</a></li> <li><a href="/wiki/UFO_sightings_in_Canada" title="UFO sightings in Canada">Canada</a></li> <li><a href="/wiki/UFO_sightings_in_China" title="UFO sightings in China">China</a></li> <li><a href="/wiki/UFO_sightings_in_the_Czech_Republic" class="mw-redirect" title="UFO sightings in the Czech Republic">Czech Republic</a></li> <li><a href="/wiki/UFO_sightings_in_France" title="UFO sightings in France">France</a></li> <li><a href="/wiki/UFO_sightings_in_Greece" title="UFO sightings in Greece">Greece</a></li> <li><a href="/wiki/UFO_sightings_in_India" title="UFO sightings in India">India</a></li> <li><a href="/wiki/UFO_sightings_in_Indonesia" title="UFO sightings in Indonesia">Indonesia</a></li> <li><a href="/wiki/UFO_sightings_in_Iran" title="UFO sightings in Iran">Iran</a></li> <li><a href="/wiki/UFO_sightings_in_Italy" title="UFO sightings in Italy">Italy</a></li> <li><a href="/wiki/UFO_sightings_in_Mexico" title="UFO sightings in Mexico">Mexico</a></li> <li><a href="/wiki/UFO_sightings_in_Nepal" title="UFO sightings in Nepal">Nepal</a></li> <li><a href="/wiki/UFO_sightings_in_New_Zealand" title="UFO sightings in New Zealand">New Zealand</a></li> <li><a href="/wiki/UFO_sightings_in_Norway" title="UFO sightings in Norway">Norway</a></li> <li><a href="/wiki/UFO_sightings_in_Poland" title="UFO sightings in Poland">Poland</a></li> <li><a href="/wiki/UFO_sightings_in_Russia" title="UFO sightings in Russia">Russia</a></li> <li><a href="/wiki/UFO_sightings_in_Spain" title="UFO sightings in Spain">Spain</a> (<a href="/wiki/UFO_sightings_in_the_Canary_Islands" title="UFO sightings in the Canary Islands">Canary Islands</a>)</li> <li><a href="/wiki/UFO_sightings_in_Sweden" title="UFO sightings in Sweden">Sweden</a></li> <li><a href="/wiki/UFO_sightings_in_the_United_Kingdom" title="UFO sightings in the United Kingdom">United Kingdom</a></li> <li><a href="/wiki/UFO_sightings_in_the_United_States" title="UFO sightings in the United States">United States</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Types of UFOs</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Black_triangle_(UFO)" title="Black triangle (UFO)">Black triangle</a></li> <li><a href="/wiki/Flying_saucer" title="Flying saucer">Flying saucer</a></li> <li><a href="/wiki/Foo_fighter" title="Foo fighter">Foo fighter</a></li> <li><a href="/wiki/Ghost_rockets" title="Ghost rockets">Ghost rockets</a></li> <li><a href="/wiki/Green_fireballs" title="Green fireballs">Green fireballs</a></li> <li><a href="/wiki/Mystery_airship" title="Mystery airship">Mystery airship</a></li> <li><a href="/wiki/Space_jellyfish" title="Space jellyfish">Space jellyfish</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_alleged_extraterrestrial_beings" title="List of alleged extraterrestrial beings">Types of alleged<br /> extraterrestrial beings</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Energy_being" title="Energy being">Energy beings</a></li> <li><a href="/wiki/Grey_alien" title="Grey alien">Grey aliens</a></li> <li><a href="/wiki/Insectoids_in_science_fiction" class="mw-redirect" title="Insectoids in science fiction">Insectoids</a></li> <li><a href="/wiki/Little_green_men" title="Little green men">Little green men</a></li> <li><a href="/wiki/Nordic_aliens" title="Nordic aliens">Nordic aliens</a></li> <li><a href="/wiki/Reptilian_humanoid" title="Reptilian humanoid">Reptilian humanoids</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Studies and timeline</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Investigation_of_UFO_reports_by_the_United_States_government" title="Investigation of UFO reports by the United States government">Investigation of UFO reports by the United States government</a></li> <li><a href="/wiki/The_Flying_Saucers_Are_Real" title="The Flying Saucers Are Real"><i>The Flying Saucers Are Real</i> (1947–1950)</a></li> <li><a href="/wiki/Project_Sign" title="Project Sign">Project Sign (1948)</a></li> <li><a href="/wiki/Project_Grudge" title="Project Grudge">Project Grudge (1949)</a></li> <li><a href="/wiki/Flying_Saucer_Working_Party" title="Flying Saucer Working Party">Flying Saucer Working Party (1950)</a></li> <li><a href="/wiki/Project_Magnet_(UFO)" title="Project Magnet (UFO)">Project Magnet (1950–1962)</a></li> <li><a href="/wiki/Project_Blue_Book" title="Project Blue Book">Project Blue Book (1952–1970)</a></li> <li><a href="/wiki/Robertson_Panel" title="Robertson Panel">Robertson Panel (1953)</a></li> <li><a href="/wiki/The_Report_on_Unidentified_Flying_Objects" title="The Report on Unidentified Flying Objects">Ruppelt report (1956)</a></li> <li><a href="/wiki/National_Investigations_Committee_On_Aerial_Phenomena" title="National Investigations Committee On Aerial Phenomena">National Investigations Committee On Aerial Phenomena (1956–1980)</a></li> <li><a href="/wiki/Condon_Committee" title="Condon Committee">Condon Report (1966–1968)</a></li> <li><a href="/wiki/Institute_22" title="Institute 22">Institute 22 (1978–?)</a></li> <li><a href="/wiki/Project_Condign" title="Project Condign">Project Condign (1997–2000)</a></li> <li><a href="/wiki/Advanced_Aerospace_Threat_Identification_Program" title="Advanced Aerospace Threat Identification Program">Advanced Aerospace Threat Identification Program (2007–2012)</a></li> <li><a href="/wiki/Identification_studies_of_UFOs" title="Identification studies of UFOs">Identification studies of UFOs</a></li> <li><a href="/wiki/Unidentified_Aerial_Phenomena_Task_Force" class="mw-redirect" title="Unidentified Aerial Phenomena Task Force">Unidentified Aerial Phenomena Task Force (current)</a></li> <li><a href="/wiki/NASA%27s_UAP_independent_study_team" class="mw-redirect" title="NASA's UAP independent study team">NASA's UAP independent study team</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Hypotheses</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ancient_astronauts" title="Ancient astronauts">Ancient astronauts</a></li> <li><a href="/wiki/Mac_Tonnies#Cryptoterrestrial_hypothesis" title="Mac Tonnies">Cryptoterrestrial</a></li> <li><a href="/wiki/Extraterrestrial_hypothesis" class="mw-redirect" title="Extraterrestrial hypothesis">Extraterrestrial</a></li> <li><a href="/wiki/Interdimensional_hypothesis" class="mw-redirect" title="Interdimensional hypothesis">Interdimensional</a></li> <li><a href="/wiki/Psychosocial_hypothesis" class="mw-redirect" title="Psychosocial hypothesis">Psychosocial</a></li> <li><a href="/wiki/Nazi_UFOs" title="Nazi UFOs">Nazi UFOs</a></li> <li><a href="/wiki/Time-traveller_UFO_hypothesis" class="mw-redirect" title="Time-traveller UFO hypothesis">Time-traveller</a></li> <li><a href="/wiki/Fourth_International_Posadist" title="Fourth International Posadist">Trotskyist-Posadism</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/UFO_conspiracy_theories" title="UFO conspiracy theories">Conspiracy theories</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Area_51" title="Area 51">Area 51</a> <ul><li><a href="/wiki/Storm_Area_51" title="Storm Area 51">Storm Area 51</a></li></ul></li> <li><a href="/wiki/Bob_Lazar" title="Bob Lazar">Bob Lazar</a></li> <li><a href="/wiki/Dulce_Base" title="Dulce Base">Dulce Base</a></li> <li><a href="/wiki/Men_in_black" title="Men in black">Men in black</a></li> <li><a href="/wiki/Planetary_objects_proposed_in_religion,_astrology,_ufology_and_pseudoscience" title="Planetary objects proposed in religion, astrology, ufology and pseudoscience">Project Serpo</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Involvement</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;"><a href="/wiki/Alien_abduction" title="Alien abduction">Abduction claims</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/History_of_alien_abduction_claims" class="mw-redirect" title="History of alien abduction claims">History</a></li> <li><a href="/wiki/Alien_abduction_entities" title="Alien abduction entities">Entities</a></li> <li><a href="/wiki/Alien_abduction_claimants" title="Alien abduction claimants">Claimants</a></li> <li><a href="/wiki/Narrative_of_the_abduction_phenomenon" title="Narrative of the abduction phenomenon">Narrative</a></li> <li><a href="/wiki/Perspectives_on_the_abduction_phenomenon" title="Perspectives on the abduction phenomenon">Perspectives</a></li> <li><a href="/wiki/Niche_insurance" title="Niche insurance">Insurance</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;font-weight:normal;">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alien_implants" title="Alien implants">Implants</a></li> <li><a href="/wiki/Cattle_mutilation" title="Cattle mutilation">Cattle mutilation</a></li> <li><a href="/wiki/Close_encounter" title="Close encounter">Close encounter</a></li> <li><a href="/wiki/Contactee" title="Contactee">Contactee</a></li> <li><a href="/wiki/Crop_circle" title="Crop circle">Crop circles</a></li> <li><a href="/wiki/List_of_investigations_of_UFOs_by_governments" title="List of investigations of UFOs by governments">Government responses</a> <ul><li><a href="/wiki/GEIPAN" title="GEIPAN">GEIPAN</a></li></ul></li> <li><a href="/wiki/List_of_UFO_organizations" title="List of UFO organizations">Organizations</a></li> <li><a href="/wiki/List_of_ufologists" title="List of ufologists">Ufologists</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Culture</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/UFOs_in_fiction" title="UFOs in fiction">Fiction</a></li> <li><a href="/wiki/UFO_religion" title="UFO religion">Religions</a> <ul><li><a href="/wiki/List_of_UFO_religions" title="List of UFO religions">list</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Skepticism</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_scientific_skeptics" title="List of scientific skeptics">List of scientific skeptics</a></li> <li><a href="/wiki/Committee_for_Skeptical_Inquiry" title="Committee for Skeptical Inquiry">Committee for Skeptical Inquiry</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Government & Law</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/2022_United_States_Congress_hearings_on_UFOs" title="2022 United States Congress hearings on UFOs">United States Congress hearings on UFOs (2022)</a></li> <li><a href="/wiki/Unidentified_Anomalous_Phenomena_Disclosure_Act" class="mw-redirect" title="Unidentified Anomalous Phenomena Disclosure Act">Unidentified Anomalous Phenomena Disclosure Act (UADPA), USA law (2023)</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Unidentified_flying_objects" title="Category:Unidentified flying objects">Category</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Extraterrestrial_life" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="text-align: center;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Extraterrestrial_life" title="Template:Extraterrestrial life"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Extraterrestrial_life" title="Template talk:Extraterrestrial life"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Extraterrestrial_life" title="Special:EditPage/Template:Extraterrestrial life"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Extraterrestrial_life" style="font-size:114%;margin:0 4em"><a href="/wiki/Extraterrestrial_life" title="Extraterrestrial life">Extraterrestrial life</a></div></th></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Events and objects</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Shergotty_meteorite" title="Shergotty meteorite">Shergotty meteorite</a> (1865)</li> <li><a href="/wiki/Nakhla_meteorite" title="Nakhla meteorite">Nakhla meteorite</a> (1911)</li> <li><a href="/wiki/Murchison_meteorite" title="Murchison meteorite">Murchison meteorite</a> (1969)</li> <li><a href="/wiki/Viking_lander_biological_experiments" title="Viking lander biological experiments">Viking lander biological experiments</a> (1976)</li> <li><a href="/wiki/Allan_Hills_77005" title="Allan Hills 77005">Allan Hills 77005</a> (1977)</li> <li><a href="/wiki/Allan_Hills_84001" title="Allan Hills 84001">Allan Hills 84001</a> (1984)</li> <li><a href="/wiki/Yamato_000593" title="Yamato 000593">Yamato 000593</a> (2000)</li> <li><a href="/wiki/CI1_fossils" title="CI1 fossils">CI1 fossils</a> (2011)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Signals of interest</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;text-align: center;">Misidentified</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/PSR_B1919%2B21" title="PSR B1919+21">CP 1919</a> <span style="font-size:85%;">(misidentified pulsar)</span></li> <li><a href="/wiki/CTA-102" title="CTA-102">CTA-102</a> <span style="font-size:85%;">(misidentified quasar)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align: center;">Stars</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Tabby%27s_Star" title="Tabby's Star">KIC 8462852</a> <span style="font-size:85%;">(unusual light fluctuations)</span></li> <li><a href="/wiki/EPIC_204278916" title="EPIC 204278916">EPIC 204278916</a> <span style="font-size:85%;">(unusual light fluctuations)</span></li> <li><a href="/wiki/VVV-WIT-07" title="VVV-WIT-07">VVV-WIT-07</a> <span style="font-size:85%;">(unusual light fluctuations)</span></li> <li><a href="/wiki/HD_164595" title="HD 164595">HD 164595 signal</a> <span style="font-size:85%;">(unknown origin)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align: center;">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SHGb02%2B14a" title="SHGb02+14a">SHGb02+14a</a> <span style="font-size:85%;">(radio source)</span></li> <li><a href="/wiki/Wow!_signal" title="Wow! signal">Wow! signal</a> <span style="font-size:85%;">(inconclusive)</span></li> <li><a href="/wiki/Fast_radio_burst" title="Fast radio burst">Fast radio burst</a> <span style="font-size:85%;">(unknown origin)</span></li> <li><a href="/wiki/BLC1" title="BLC1">BLC1</a> <span style="font-size:85%;">(radio signal)</span></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Life in the Universe</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Earliest_known_life_forms" title="Earliest known life forms">Earliest known life forms</a></li> <li><a href="/wiki/Planetary_habitability_in_the_Solar_System" title="Planetary habitability in the Solar System">Planetary habitability in the Solar System</a></li> <li><a href="/wiki/Life_on_Venus" title="Life on Venus">Life on Venus</a></li> <li><a href="/wiki/Life_on_Mars" title="Life on Mars">Life on Mars</a></li> <li><a href="/wiki/Life_on_Titan" title="Life on Titan">Life on Titan</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Planetary_habitability" title="Planetary habitability">Planetary<br />habitability</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Catalog_of_Nearby_Habitable_Systems" title="Catalog of Nearby Habitable Systems">Catalog of Nearby Habitable Systems</a></li> <li><a href="/wiki/Circumstellar_habitable_zone" class="mw-redirect" title="Circumstellar habitable zone">Circumstellar habitable zone</a></li> <li><a href="/wiki/Earth_analog" title="Earth analog">Earth analog</a></li> <li><a href="/wiki/Extraterrestrial_liquid_water" title="Extraterrestrial liquid water">Extraterrestrial liquid water</a></li> <li><a href="/wiki/Galactic_habitable_zone" title="Galactic habitable zone">Galactic habitable zone</a></li> <li><a href="/wiki/Habitability_of_binary_star_systems" title="Habitability of binary star systems">Habitability of binary star systems</a></li> <li><a href="/wiki/Habitability_of_natural_satellites" title="Habitability of natural satellites">Habitability of natural satellites</a></li> <li><a href="/wiki/Habitability_of_neutron_star_systems" title="Habitability of neutron star systems">Habitability of neutron star systems</a></li> <li><a href="/wiki/Habitability_of_red_dwarf_systems" title="Habitability of red dwarf systems">Habitability of red dwarf systems</a></li> <li><a href="/wiki/Habitability_of_K-type_main-sequence_star_systems" title="Habitability of K-type main-sequence star systems">Habitability of K-type main-sequence star systems</a></li> <li><a href="/wiki/Habitability_of_yellow_dwarf_systems" title="Habitability of yellow dwarf systems">Habitability of yellow dwarf systems</a></li> <li><a href="/wiki/Habitability_of_F-type_main-sequence_star_systems" title="Habitability of F-type main-sequence star systems">Habitability of F-type main-sequence star systems</a></li> <li><a href="/wiki/List_of_potentially_habitable_exoplanets" title="List of potentially habitable exoplanets">List of potentially habitable exoplanets</a></li> <li><a href="/wiki/Planetary_habitability" title="Planetary habitability">Planetary habitability</a></li> <li><a href="/wiki/Superhabitable_planet" class="mw-redirect" title="Superhabitable planet">Superhabitable planet</a></li> <li><a href="/wiki/Tholin" title="Tholin">Tholin</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Astrobiology#Missions" title="Astrobiology">Space missions</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Beagle_2" title="Beagle 2">Beagle 2</a></li> <li><a href="/wiki/Biological_Oxidant_and_Life_Detection" title="Biological Oxidant and Life Detection">Biological Oxidant and Life Detection</a></li> <li><a href="/wiki/BioSentinel" title="BioSentinel">BioSentinel</a></li> <li><a href="/wiki/Curiosity_(rover)" title="Curiosity (rover)"><i>Curiosity</i> rover</a></li> <li><i><a href="/wiki/Darwin_(spacecraft)" title="Darwin (spacecraft)">Darwin</a></i></li> <li><i><a href="/wiki/Dragonfly_(Titan_space_probe)" title="Dragonfly (Titan space probe)">Dragonfly</a></i></li> <li><a href="/wiki/Enceladus_Explorer" title="Enceladus Explorer">Enceladus Explorer</a></li> <li><a href="/wiki/Enceladus_Life_Finder" title="Enceladus Life Finder">Enceladus Life Finder</a></li> <li><i><a href="/wiki/Europa_Clipper" title="Europa Clipper">Europa Clipper</a></i></li> <li><a href="/wiki/ExoMars" title="ExoMars">ExoMars</a> <ul><li><a href="/wiki/Rosalind_Franklin_(rover)" title="Rosalind Franklin (rover)"><i>Rosalind Franklin</i> rover</a></li></ul></li> <li><a href="/wiki/ExoLance" title="ExoLance">ExoLance</a></li> <li><a href="/wiki/EXPOSE" title="EXPOSE">EXPOSE</a></li> <li><a href="/wiki/Foton-M" class="mw-redirect" title="Foton-M">Foton-M3</a></li> <li><a href="/wiki/Icebreaker_Life" title="Icebreaker Life">Icebreaker Life</a></li> <li><a href="/wiki/Journey_to_Enceladus_and_Titan" title="Journey to Enceladus and Titan">Journey to Enceladus and Titan</a></li> <li><a href="/wiki/Laplace-P" title="Laplace-P">Laplace-P</a></li> <li><a href="/wiki/Life_Investigation_For_Enceladus" title="Life Investigation For Enceladus">Life Investigation For Enceladus</a></li> <li><a href="/wiki/Living_Interplanetary_Flight_Experiment" title="Living Interplanetary Flight Experiment">Living Interplanetary Flight Experiment</a></li> <li><a href="/wiki/Mars_Geyser_Hopper" title="Mars Geyser Hopper">Mars Geyser Hopper</a></li> <li><a href="/wiki/Mars_sample-return_mission" title="Mars sample-return mission">Mars sample-return mission</a></li> <li><a href="/wiki/Mars_2020" title="Mars 2020">Mars 2020</a></li> <li><a href="/wiki/Northern_Light_(spacecraft)" title="Northern Light (spacecraft)">Northern Light</a></li> <li><a href="/wiki/Opportunity_(rover)" title="Opportunity (rover)"><i>Opportunity</i> rover</a></li> <li><a href="/wiki/Perseverance_(rover)" title="Perseverance (rover)"><i>Perseverance</i> rover</a></li> <li><a href="/wiki/SpaceX_Red_Dragon" title="SpaceX Red Dragon">SpaceX Red Dragon</a></li> <li><a href="/wiki/Spirit_(rover)" title="Spirit (rover)"><i>Spirit</i> rover</a></li> <li><a href="/wiki/Tanpopo_mission" title="Tanpopo mission">Tanpopo</a></li> <li><a href="/wiki/Titan_Mare_Explorer" title="Titan Mare Explorer">Titan Mare Explorer</a></li> <li><a href="/wiki/Venus_In_Situ_Explorer" title="Venus In Situ Explorer">Venus In Situ Explorer</a></li> <li><i><a href="/wiki/Viking_1" title="Viking 1">Viking 1</a></i></li> <li><i><a href="/wiki/Viking_2" title="Viking 2">Viking 2</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Interstellar_communication" title="Interstellar communication">Interstellar<br />communication</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Active_SETI" title="Active SETI">Active SETI</a></li> <li><a href="/wiki/Allen_Telescope_Array" title="Allen Telescope Array">Allen Telescope Array</a></li> <li><a href="/wiki/Arecibo_message" title="Arecibo message">Arecibo message</a></li> <li><a href="/wiki/Arecibo_Observatory" title="Arecibo Observatory">Arecibo Observatory</a></li> <li><a href="/wiki/Berkeley_SETI_Research_Center" title="Berkeley SETI Research Center">Berkeley SETI Research Center</a></li> <li><a href="/wiki/Bracewell_probe" title="Bracewell probe">Bracewell probe</a></li> <li><a href="/wiki/Breakthrough_Initiatives" title="Breakthrough Initiatives">Breakthrough Initiatives</a> <ul><li><a href="/wiki/Breakthrough_Listen" title="Breakthrough Listen">Breakthrough Listen</a></li> <li><a href="/wiki/Breakthrough_Message" class="mw-redirect" title="Breakthrough Message">Breakthrough Message</a></li></ul></li> <li><a href="/wiki/Communication_with_extraterrestrial_intelligence" title="Communication with extraterrestrial intelligence">Communication with extraterrestrial intelligence</a></li> <li><a href="/wiki/Gauss%27s_Pythagorean_right_triangle_proposal" title="Gauss's Pythagorean right triangle proposal">Gauss's Pythagorean right triangle proposal</a></li> <li><a href="/wiki/Astrolinguistics" title="Astrolinguistics">Astrolinguistics</a></li> <li><a href="/wiki/Lincos_language" title="Lincos language">Lincos language</a></li> <li><a href="/wiki/NIROSETI" title="NIROSETI">NIROSETI</a></li> <li><a href="/wiki/Pioneer_plaque" title="Pioneer plaque">Pioneer plaque</a></li> <li><a href="/wiki/Project_Cyclops" title="Project Cyclops">Project Cyclops</a></li> <li><a href="/wiki/Project_Ozma" title="Project Ozma">Project Ozma</a></li> <li><a href="/wiki/Project_Phoenix_(SETI)" title="Project Phoenix (SETI)">Project Phoenix</a></li> <li><a href="/wiki/SERENDIP" title="SERENDIP">SERENDIP</a></li> <li><a href="/wiki/Search_for_extraterrestrial_intelligence" title="Search for extraterrestrial intelligence">Search for extraterrestrial intelligence</a></li> <li><a href="/wiki/SETI@home" title="SETI@home">SETI@home</a></li> <li><a href="/wiki/SetiQuest" title="SetiQuest">setiQuest</a></li> <li><a href="/wiki/Voyager_Golden_Record" title="Voyager Golden Record">Voyager Golden Record</a></li> <li><a href="/wiki/Water_hole_(radio)" title="Water hole (radio)">Water hole</a></li> <li><a href="/wiki/Alien_language" title="Alien language">Xenolinguistics</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/List_of_alleged_extraterrestrial_beings" title="List of alleged extraterrestrial beings">Types of alleged<br /> extraterrestrial beings</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Energy_being" title="Energy being">Energy beings</a></li> <li><a href="/wiki/Grey_alien" title="Grey alien">Grey aliens</a></li> <li><a href="/wiki/Insectoids_in_science_fiction" class="mw-redirect" title="Insectoids in science fiction">Insectoids</a></li> <li><a href="/wiki/Little_green_men" title="Little green men">Little green men</a></li> <li><a href="/wiki/Nordic_aliens" title="Nordic aliens">Nordic aliens</a></li> <li><a href="/wiki/Reptilian_humanoid" title="Reptilian humanoid">Reptilian humanoids</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Hypotheses</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cosmic_pluralism" title="Cosmic pluralism">Cosmic pluralism</a></li> <li><a href="/wiki/Directed_panspermia" title="Directed panspermia">Directed panspermia</a></li> <li><a href="/wiki/Drake_equation" title="Drake equation">Drake equation</a></li> <li><a href="/wiki/Extraterrestrial_hypothesis" class="mw-redirect" title="Extraterrestrial hypothesis">Extraterrestrial hypothesis</a></li> <li><a href="/wiki/Fermi_paradox" title="Fermi paradox">Fermi paradox</a></li> <li><a href="/wiki/Hypothetical_types_of_biochemistry" title="Hypothetical types of biochemistry">Hypothetical types of biochemistry</a></li> <li><a href="/wiki/Interplanetary_contamination" title="Interplanetary contamination">Interplanetary contamination</a></li> <li><a href="/wiki/Kardashev_scale" title="Kardashev scale">Kardashev scale</a></li> <li><a href="/wiki/Mediocrity_principle" title="Mediocrity principle">Mediocrity principle</a></li> <li><a href="/wiki/Panspermia" title="Panspermia">Panspermia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Fermi_paradox" title="Fermi paradox">Fermi paradox</a> solutions</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aestivation_hypothesis" title="Aestivation hypothesis">Aestivation hypothesis</a></li> <li><a href="/wiki/Berserker_hypothesis" title="Berserker hypothesis">Berserker hypothesis</a></li> <li><a href="/wiki/Dark_forest_hypothesis" title="Dark forest hypothesis">Dark forest hypothesis</a></li> <li><a href="/wiki/Firstborn_hypothesis" title="Firstborn hypothesis">Firstborn hypothesis</a></li> <li><a href="/wiki/Great_Filter" title="Great Filter">Great Filter</a></li> <li><a href="/wiki/Hart%E2%80%93Tipler_conjecture" title="Hart–Tipler conjecture">Hart–Tipler conjecture</a></li> <li><a href="/wiki/Neocatastrophism" title="Neocatastrophism">Neocatastrophism</a></li> <li><a href="/wiki/Planetarium_hypothesis" title="Planetarium hypothesis">Planetarium hypothesis</a></li> <li><a href="/wiki/Rare_Earth_hypothesis" title="Rare Earth hypothesis">Rare Earth hypothesis</a></li> <li><a href="/wiki/Zoo_hypothesis" title="Zoo hypothesis">Zoo hypothesis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Outline_of_extraterrestrial_life" title="Outline of extraterrestrial life">Related topics</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ancient_astronauts" title="Ancient astronauts">Ancient astronauts</a></li> <li><a href="/wiki/Astrobiology" title="Astrobiology">Astrobiology</a></li> <li><a href="/wiki/Astroecology" title="Astroecology">Astroecology</a></li> <li><a href="/wiki/Biosignature" title="Biosignature">Biosignature</a></li> <li><a href="/wiki/Brookings_Report" title="Brookings Report">Brookings Report</a></li> <li><a href="/wiki/Exotheology" title="Exotheology">Exotheology</a></li> <li><a href="/wiki/Extraterrestrials_in_fiction" title="Extraterrestrials in fiction">Extraterrestrials in fiction</a></li> <li><a href="/wiki/Extremophile" title="Extremophile">Extremophile</a></li> <li><a href="/wiki/Hemolithin" title="Hemolithin">Hemolithin</a></li> <li><a href="/wiki/History_of_the_extraterrestrial_life_debate" title="History of the extraterrestrial life debate">History of the extraterrestrial life debate</a></li> <li><a href="/wiki/MERMOZ" title="MERMOZ">MERMOZ</a></li> <li><a href="/wiki/Nexus_for_Exoplanet_System_Science" title="Nexus for Exoplanet System Science">Nexus for Exoplanet System Science</a></li> <li><a href="/wiki/Noosphere" title="Noosphere">Noogenesis</a></li> <li><a href="/wiki/Planetary_protection" title="Planetary protection">Planetary protection</a></li> <li><a href="/wiki/Potential_cultural_impact_of_extraterrestrial_contact" title="Potential cultural impact of extraterrestrial contact">Potential cultural impact of extraterrestrial contact</a></li> <li><a href="/wiki/Post-detection_policy" title="Post-detection policy">Post-detection policy</a></li> <li><a href="/wiki/San_Marino_Scale" title="San Marino Scale">San Marino Scale</a></li> <li><a href="/wiki/Technosignature" title="Technosignature">Technosignature</a></li> <li><a href="/wiki/UFO_religion" title="UFO religion">UFO religion</a></li> <li><a class="mw-selflink selflink">Xenoarchaeology</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"></div><div role="navigation" class="navbox" aria-labelledby="Science_fiction" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Science_fiction" title="Template:Science fiction"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Science_fiction" title="Template talk:Science fiction"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Science_fiction" title="Special:EditPage/Template:Science fiction"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Science_fiction" style="font-size:114%;margin:0 4em"><a href="/wiki/Science_fiction" title="Science fiction">Science fiction</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Outline_of_science_fiction" title="Outline of science fiction">Outline</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_science-fiction_authors" title="List of science-fiction authors">Authors</a></li> <li><a href="/wiki/Definitions_of_science_fiction" title="Definitions of science fiction">Definitions</a> <ul><li><a href="/wiki/Anthropological_science_fiction" title="Anthropological science fiction">Anthropological</a></li> <li><a href="/wiki/Hard_science_fiction" title="Hard science fiction">Hard</a></li> <li><a href="/wiki/Scientific_romance" title="Scientific romance">Scientific romance</a></li> <li><a href="/wiki/Soft_science_fiction" title="Soft science fiction">Soft</a></li></ul></li> <li><a href="/wiki/Golden_Age_of_Science_Fiction" title="Golden Age of Science Fiction">Golden Age</a></li> <li><a href="/wiki/History_of_science_fiction" title="History of science fiction">History</a></li> <li><a href="/wiki/New_Wave_science_fiction" class="mw-redirect" title="New Wave science fiction">New Wave</a></li> <li><a href="/wiki/Timeline_of_science_fiction" title="Timeline of science fiction">Timeline</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Subgenres</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apocalyptic_and_post-apocalyptic_fiction" title="Apocalyptic and post-apocalyptic fiction">Apocalyptic and post-apocalyptic</a></li> <li><a href="/wiki/Science_fiction_comedy" title="Science fiction comedy">Comedy</a> <ul><li><a href="/wiki/List_of_science_fiction_sitcoms" class="mw-redirect" title="List of science fiction sitcoms">Sitcoms</a></li></ul></li> <li><a href="/wiki/Feminist_science_fiction" title="Feminist science fiction">Feminist</a></li> <li><a href="/wiki/Grimdark" title="Grimdark">Grimdark</a></li> <li><a href="/wiki/Inner_space_(science_fiction)" title="Inner space (science fiction)">Inner space</a></li> <li><a href="/wiki/Mecha" title="Mecha">Mecha</a> <ul><li><a href="/wiki/Mecha_anime_and_manga" title="Mecha anime and manga">Anime and manga</a></li></ul></li> <li><a href="/wiki/Mundane_science_fiction" title="Mundane science fiction">Mundane</a></li> <li><a href="/wiki/Space_warfare_in_science_fiction" title="Space warfare in science fiction">Space warfare</a> <ul><li><a href="/wiki/Military_science_fiction" title="Military science fiction">Military</a></li> <li><a href="/wiki/Space_opera" title="Space opera">Space opera</a></li> <li><a href="/wiki/Space_Western" title="Space Western">Space Western</a></li></ul></li> <li><a href="/wiki/Parallel_universes_in_fiction" title="Parallel universes in fiction">Parallel universes</a> <ul><li><a href="/wiki/Isekai" title="Isekai">Isekai</a></li></ul></li> <li><a href="/wiki/Science_fantasy" title="Science fantasy">Science fantasy</a> <ul><li><a href="/wiki/Dying_Earth_(genre)" title="Dying Earth (genre)">Dying Earth</a></li> <li><a href="/wiki/Planetary_romance" title="Planetary romance">Planetary romance</a></li> <li><a href="/wiki/Superhero_fiction" title="Superhero fiction">Superhero</a></li> <li><a href="/wiki/Sword_and_planet" class="mw-redirect" title="Sword and planet">Sword and planet</a></li></ul></li> <li><a href="/wiki/Social_science_fiction" title="Social science fiction">Social</a> <ul><li><a href="/wiki/Climate_fiction" title="Climate fiction">Climate fiction</a></li> <li><a href="/wiki/Christian_science_fiction" title="Christian science fiction">Christian</a></li> <li><a href="/wiki/Libertarian_science_fiction" title="Libertarian science fiction">Libertarian</a></li> <li><a href="/wiki/Utopian_and_dystopian_fiction" title="Utopian and dystopian fiction">Utopian and dystopian</a></li></ul></li> <li><a href="/wiki/Tech_noir" title="Tech noir">Tech noir</a> <ul><li><a href="/wiki/Spy-Fi_(subgenre)" class="mw-redirect" title="Spy-Fi (subgenre)">Spy-Fi</a></li> <li><a href="/wiki/Techno-thriller" title="Techno-thriller">Techno-thriller</a></li></ul></li> <li><a href="/wiki/Tokusatsu" title="Tokusatsu">Tokusatsu</a> <ul><li><a href="/wiki/Kaiju" title="Kaiju">Kaiju</a></li></ul></li> <li><a href="/wiki/List_of_underwater_science_fiction_works" title="List of underwater science fiction works">Underwater</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cyberpunk_derivatives" title="Cyberpunk derivatives">Cyberpunk derivatives</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cyberpunk" title="Cyberpunk">Cyberpunk</a> <ul><li><a href="/wiki/Japanese_cyberpunk" title="Japanese cyberpunk">Japanese</a></li></ul></li> <li><a href="/wiki/Biopunk" title="Biopunk">Biopunk</a></li> <li><a href="/wiki/Dieselpunk" title="Dieselpunk">Dieselpunk</a></li> <li><a href="/wiki/Nanopunk" title="Nanopunk">Nanopunk</a></li> <li><a href="/wiki/Solarpunk" title="Solarpunk">Solarpunk</a></li> <li><a href="/wiki/Steampunk" title="Steampunk">Steampunk</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Culture</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Science_fiction_convention" title="Science fiction convention">Conventions</a></li> <li><a href="/wiki/Science_fiction_fandom" title="Science fiction fandom">Fandom</a></li> <li><a href="/wiki/Science-fiction_fanzine" title="Science-fiction fanzine">Fanzines</a></li> <li><a href="/wiki/Internet_Speculative_Fiction_Database" title="Internet Speculative Fiction Database">ISFDB</a></li> <li><a href="/wiki/Science_fiction_libraries_and_museums" title="Science fiction libraries and museums">Libraries and museums</a></li> <li><a href="/wiki/EMP_Museum#Science_Fiction_Museum" class="mw-redirect" title="EMP Museum">Science Fiction Museum</a></li> <li><a href="/wiki/Science_fiction_studies" title="Science fiction studies">Studies</a></li> <li><a href="/wiki/Women_in_speculative_fiction" title="Women in speculative fiction">Women in SF</a></li> <li><a href="/wiki/Worldcon" title="Worldcon">Worldcon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Region</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Australian_science_fiction" title="Australian science fiction">Australian</a></li> <li><a href="/wiki/Bengali_science_fiction" title="Bengali science fiction">Bengali</a></li> <li><a href="/wiki/Brazilian_science_fiction" title="Brazilian science fiction">Brazilian</a></li> <li><a href="/wiki/Canadian_science_fiction" title="Canadian science fiction">Canadian</a></li> <li><a href="/wiki/Chilean_science_fiction" title="Chilean science fiction">Chilean</a></li> <li><a href="/wiki/Chinese_science_fiction" title="Chinese science fiction">Chinese</a></li> <li><a href="/wiki/Croatian_science_fiction" title="Croatian science fiction">Croatian</a></li> <li><a href="/wiki/Czech_science_fiction_and_fantasy" class="mw-redirect" title="Czech science fiction and fantasy">Czech</a></li> <li><a href="/wiki/Estonian_science_fiction" title="Estonian science fiction">Estonian</a></li> <li><a href="/wiki/French_science_fiction" title="French science fiction">French</a></li> <li><a href="/wiki/Hungarian_science_fiction" title="Hungarian science fiction">Hungarian</a></li> <li><a href="/wiki/Japanese_science_fiction" title="Japanese science fiction">Japanese</a></li> <li><a href="/wiki/Norwegian_science_fiction" title="Norwegian science fiction">Norwegian</a></li> <li><a href="/wiki/Science_fiction_and_fantasy_in_Poland" class="mw-redirect" title="Science fiction and fantasy in Poland">Polish</a></li> <li><a href="/wiki/Romanian_science_fiction" title="Romanian science fiction">Romanian</a></li> <li><a href="/wiki/Russian_science_fiction_and_fantasy" class="mw-redirect" title="Russian science fiction and fantasy">Russian</a></li> <li><a href="/wiki/Serbian_science_fiction" title="Serbian science fiction">Serbian</a></li> <li><a href="/wiki/Spanish_science_fiction" title="Spanish science fiction">Spanish</a></li> <li><a href="/wiki/Yugoslav_science_fiction" title="Yugoslav science fiction">Yugoslav</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Awards</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Cinematic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Jules_Verne_Awards" title="Jules Verne Awards">Jules Verne</a></li> <li><a href="/wiki/Saturn_Awards" title="Saturn Awards">Saturn</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Literary, art,<br />and audio</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Astounding_Award_for_Best_New_Writer" title="Astounding Award for Best New Writer">Astounding</a></li> <li><a href="/wiki/Aurealis_Award" title="Aurealis Award">Aurealis</a></li> <li><a href="/wiki/BSFA_Award" title="BSFA Award">BSFA</a></li> <li><a href="/wiki/John_W._Campbell_Memorial_Award_for_Best_Science_Fiction_Novel" title="John W. Campbell Memorial Award for Best Science Fiction Novel">Campbell Memorial</a></li> <li><a href="/wiki/Chesley_Awards" title="Chesley Awards">Chesley</a></li> <li><a href="/wiki/Arthur_C._Clarke_Award" title="Arthur C. Clarke Award">Clarke</a></li> <li><a href="/wiki/Compton_Crook_Award" title="Compton Crook Award">Crook</a></li> <li><a href="/wiki/Deutscher_Science_Fiction_Preis" title="Deutscher Science Fiction Preis">Deutscher</a></li> <li><a href="/wiki/Philip_K._Dick_Award" title="Philip K. Dick Award">Dick</a></li> <li><a href="/wiki/Ditmar_Award" title="Ditmar Award">Ditmar</a></li> <li><a href="/wiki/Endeavour_Award" title="Endeavour Award">Endeavor</a></li> <li><a href="/wiki/FantLab%27s_Book_of_the_Year_Award" title="FantLab's Book of the Year Award">FantLab</a></li> <li><a href="/wiki/Galaxy_Award_(China)" title="Galaxy Award (China)">Galaxy</a></li> <li><a href="/wiki/Jack_Gaughan_Award" title="Jack Gaughan Award">Gaughan</a></li> <li><a href="/wiki/Geffen_Award" title="Geffen Award">Geffen</a></li> <li><a href="/wiki/Golden_Duck_Award" title="Golden Duck Award">Golden Duck</a></li> <li><a href="/wiki/Damon_Knight_Memorial_Grand_Master_Award" title="Damon Knight Memorial Grand Master Award">Grand Master</a></li> <li><a href="/wiki/Grand_prix_de_l%27Imaginaire" title="Grand prix de l'Imaginaire">Grand Prix</a></li> <li><a href="/wiki/Paul_Harland_Prize" title="Paul Harland Prize">Harland</a></li> <li><a href="/wiki/Robert_A._Heinlein_Award" title="Robert A. Heinlein Award">Heinlein</a></li> <li><a href="/wiki/Premio_Ignotus" title="Premio Ignotus">Ignotus</a></li> <li><a href="/wiki/Kitschies" title="Kitschies">Kitschies</a></li> <li><a href="/wiki/List_of_Lambda_Literary_Awards_winners_and_nominees_for_science_fiction,_fantasy_and_horror" class="mw-redirect" title="List of Lambda Literary Awards winners and nominees for science fiction, fantasy and horror">Lambda</a></li> <li><a href="/wiki/Kurd_La%C3%9Fwitz_Award" title="Kurd Laßwitz Award">Laßwitz</a></li> <li><a href="/wiki/Locus_Award" title="Locus Award">Locus</a></li> <li><a href="/wiki/Nautilus_Award" title="Nautilus Award">Nautilus</a></li> <li><a href="/wiki/Nebula_Award" title="Nebula Award">Nebula</a></li> <li><a href="/wiki/Nommo_Awards" title="Nommo Awards">Nommo</a></li> <li><a href="/wiki/Andre_Norton_Award" title="Andre Norton Award">Norton</a></li> <li><a href="/wiki/Parsec_Awards" title="Parsec Awards">Parsec</a></li> <li><a href="/wiki/Prometheus_Award" title="Prometheus Award">Prometheus</a></li> <li><a href="/wiki/Rhysling_Award" title="Rhysling Award">Rhysling</a></li> <li><a href="/wiki/SFERA_Award" title="SFERA Award">SFERA</a></li> <li><a href="/wiki/Sidewise_Award_for_Alternate_History" title="Sidewise Award for Alternate History">Sidewise</a></li> <li><a href="/wiki/Edward_E._Smith_Memorial_Award" title="Edward E. Smith Memorial Award">Skylark</a></li> <li><a href="/wiki/Theodore_Sturgeon_Award" title="Theodore Sturgeon Award">Sturgeon</a></li> <li><a href="/wiki/Sunburst_Award" title="Sunburst Award">Sunburst</a></li> <li><a href="/wiki/T%C3%A4htivaeltaja_Award" title="Tähtivaeltaja Award">Tähtivaeltaja</a></li> <li><a href="/wiki/TBD_Science_Fiction_Story_Award" title="TBD Science Fiction Story Award">TBD</a></li> <li><a href="/wiki/James_Tiptree_Jr._Award" class="mw-redirect" title="James Tiptree Jr. Award">Tiptree</a></li> <li><a href="/wiki/Prix_Apollo_Award" title="Prix Apollo Award">Tour-Apollo</a></li> <li><a href="/wiki/Science_Fiction_%26_Fantasy_Translation_Awards" title="Science Fiction & Fantasy Translation Awards">Translation</a></li> <li><a href="/wiki/Urania_Award" title="Urania Award">Urania</a></li> <li><a href="/wiki/Sir_Julius_Vogel_Award" title="Sir Julius Vogel Award">Vogel</a></li> <li><a href="/wiki/Writers_of_the_Future" class="mw-redirect" title="Writers of the Future">Writers and Illustrators of the Future</a></li> <li><a href="/wiki/Janusz_A._Zajdel_Award" title="Janusz A. Zajdel Award">Zajdel</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Multimedia</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aurora_Awards" title="Aurora Awards">Aurora</a></li> <li><a href="/wiki/Chandler_Award" title="Chandler Award">Chandler</a></li> <li><a href="/wiki/Dragon_Awards" title="Dragon Awards">Dragon</a></li> <li><a href="/wiki/Hugo_Award" title="Hugo Award">Hugo</a></li> <li><a href="/wiki/Seiun_Award" title="Seiun Award">Seiun</a></li> <li><a href="/wiki/Gaylactic_Spectrum_Awards" title="Gaylactic Spectrum Awards">Spectrum</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Media</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Science_fiction_film" title="Science fiction film">Film</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/History_of_science_fiction_films" title="History of science fiction films">Film history</a></li> <li><a href="/wiki/Lists_of_science_fiction_films" title="Lists of science fiction films">Films</a></li> <li><a href="/wiki/Science_fiction_films_in_India" title="Science fiction films in India">Indian</a></li> <li><a href="/wiki/Japanese_science_fiction" title="Japanese science fiction">Japanese</a> <ul><li><a href="/wiki/List_of_science_fiction_anime" title="List of science fiction anime">Anime</a></li> <li><a href="/wiki/Tokusatsu" title="Tokusatsu">Tokusatsu</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Literature</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Science_fiction_comics" title="Science fiction comics">Comics</a></li> <li><a href="/wiki/Science_fiction_magazine" title="Science fiction magazine">Magazines</a></li> <li><a href="/wiki/List_of_science_fiction_novels" title="List of science fiction novels">Novels</a></li> <li><a href="/wiki/List_of_science_fiction_publishers" title="List of science fiction publishers">Publishers</a></li> <li><a href="/wiki/List_of_science_fiction_short_stories" title="List of science fiction short stories">Short stories</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Stage</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Science_fiction_opera" title="Science fiction opera">Opera</a></li> <li><a href="/wiki/Science_fiction_theatre" title="Science fiction theatre">Theatre</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Science_fiction_on_television" title="Science fiction on television">Television</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_science_fiction_television_programs" title="List of science fiction television programs">List of TV shows</a></li> <li><a href="/wiki/Australian_science_fiction_television" title="Australian science fiction television">Australasian</a></li> <li><a href="/wiki/British_television_science_fiction" title="British television science fiction">British</a></li> <li><a href="/wiki/Canadian_science_fiction_television" title="Canadian science fiction television">Canadian</a></li> <li><a href="/wiki/Science_fiction_on_television#Continental_European_science_fiction_series" title="Science fiction on television">European</a></li> <li><a href="/wiki/Japanese_science_fiction" title="Japanese science fiction">Japanese</a> <ul><li><a href="/wiki/List_of_science_fiction_anime" title="List of science fiction anime">Anime</a></li> <li><a href="/wiki/Tokusatsu" title="Tokusatsu">Live-action</a></li></ul></li> <li><a href="/wiki/U.S._television_science_fiction" title="U.S. television science fiction">U.S.</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_science_fiction_themes" title="List of science fiction themes">Themes</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Space_architecture" title="Space architecture">Architectural</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Space_colonization" title="Space colonization">Colonization</a></li> <li><a href="/wiki/Dyson_sphere" title="Dyson sphere">Dyson sphere</a></li> <li><a href="/wiki/Matrioshka_brain" title="Matrioshka brain">Matrioshka brain</a></li> <li><a href="/wiki/Space_stations_and_habitats_in_fiction" title="Space stations and habitats in fiction">Space stations and habitats</a></li> <li><a href="/wiki/Stellar_engine" title="Stellar engine">Stellar engine</a></li> <li><a href="/wiki/Terraforming_in_popular_culture" title="Terraforming in popular culture">Terraforming</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Biology_in_fiction" title="Biology in fiction">Biological</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Biological_warfare_in_popular_culture" title="Biological warfare in popular culture">Biological warfare</a></li> <li><a href="/wiki/Energy_being" title="Energy being">Energy being</a></li> <li><a href="/wiki/Evolution_in_fiction" title="Evolution in fiction">Evolution</a></li> <li><a href="/wiki/Extraterrestrials_in_fiction" title="Extraterrestrials in fiction">Extraterrestrials</a> <ul><li><a href="/wiki/Lists_of_fictional_extraterrestrials" title="Lists of fictional extraterrestrials">List</a></li></ul></li> <li><a href="/wiki/Gender_in_speculative_fiction" title="Gender in speculative fiction">Gender</a></li> <li><a href="/wiki/Genetic_engineering_in_science_fiction" class="mw-redirect" title="Genetic engineering in science fiction">Genetic engineering</a></li> <li><a href="/wiki/Invisibility_in_fiction" title="Invisibility in fiction">Invisibility</a></li> <li><a href="/wiki/Nanotechnology_in_fiction" title="Nanotechnology in fiction">Nanotechnology</a></li> <li><a href="/wiki/Organ_transplantation_in_fiction" title="Organ transplantation in fiction">Organ transplantation</a></li> <li><a href="/wiki/Parasites_in_fiction" title="Parasites in fiction">Parasites</a></li> <li><a href="/wiki/Prosthetics_in_fiction" title="Prosthetics in fiction">Prosthetics</a></li> <li><a href="/wiki/Sex_and_sexuality_in_speculative_fiction" title="Sex and sexuality in speculative fiction">Sex and sexuality</a></li> <li><a href="/wiki/Symbiosis_in_fiction" title="Symbiosis in fiction">Symbiosis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Physical</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ansible" title="Ansible">Ansible</a></li> <li><a href="/wiki/Black_holes_in_fiction" title="Black holes in fiction">Black holes</a></li> <li><a href="/wiki/Extrasolar_planets_in_fiction" title="Extrasolar planets in fiction">Extrasolar planets</a></li> <li><a href="/wiki/Force_field_(technology)" title="Force field (technology)">Force field</a></li> <li><a href="/wiki/Hyperspace" title="Hyperspace">Hyperspace</a></li> <li><a href="/wiki/Inertialess_drive" class="mw-redirect" title="Inertialess drive">Inertialess</a></li> <li><a href="/wiki/Multiverse" title="Multiverse">Multiverse</a></li> <li><a href="/wiki/Parallel_universes_in_fiction" title="Parallel universes in fiction">Parallel universes</a></li> <li><a href="/wiki/Portable_hole" title="Portable hole">Portable hole</a></li> <li><a href="/wiki/Space_travel_in_science_fiction" title="Space travel in science fiction">Space travel</a></li> <li><a href="/wiki/Stargate_(device)" title="Stargate (device)">Stargate</a></li> <li><a href="/wiki/Stars_in_fiction" title="Stars in fiction">Stars</a></li> <li><a href="/wiki/Teleportation_in_fiction" title="Teleportation in fiction">Teleportation</a></li> <li><a href="/wiki/Time_travel_in_fiction" title="Time travel in fiction">Time travel</a> (<a href="/wiki/Time_viewer" title="Time viewer">Viewer</a>)</li> <li><a href="/wiki/Warp_drive" title="Warp drive">Warp drive</a></li> <li><a href="/wiki/Wormholes_in_fiction" title="Wormholes in fiction">Wormhole</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Psychological</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Group_mind_(science_fiction)" title="Group mind (science fiction)">Group mind</a></li> <li><a href="/wiki/Mind_uploading_in_fiction" title="Mind uploading in fiction">Mind uploading</a></li> <li><a href="/wiki/Psionics" title="Psionics">Psionics</a></li> <li><a href="/wiki/Simulated_consciousness_in_fiction" title="Simulated consciousness in fiction">Simulated consciousness</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Social</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Africanfuturism" title="Africanfuturism">Africanfuturism</a></li> <li><a href="/wiki/Afrofuturism" title="Afrofuturism">Afrofuturism</a></li> <li><a href="/wiki/Alien_invasion" title="Alien invasion">Alien invasion</a></li> <li><a href="/wiki/Alien_language" title="Alien language">Alien language</a></li> <li><a href="/wiki/Ancient_astronauts_in_popular_culture" title="Ancient astronauts in popular culture">Ancient astronauts</a></li> <li><a href="/wiki/Black_science_fiction" title="Black science fiction">Black</a></li> <li><a href="/wiki/Evil_corporation" title="Evil corporation">Evil corporation</a></li> <li><a href="/wiki/First_contact_(science_fiction)" title="First contact (science fiction)">First contact</a></li> <li><a href="/wiki/Frankenstein_complex" title="Frankenstein complex">Frankenstein complex</a></li> <li><a href="/wiki/Galactic_empire" title="Galactic empire">Galactic empire</a></li> <li><a href="/wiki/LGBT_themes_in_speculative_fiction" title="LGBT themes in speculative fiction">LGBT</a></li> <li><a href="/wiki/Message_from_space_(science_fiction)" title="Message from space (science fiction)">Message from space</a></li> <li><a href="/wiki/Transhumanism_in_fiction" title="Transhumanism in fiction">Transhumanism</a></li> <li><a href="/wiki/Uplift_(science_fiction)" title="Uplift (science fiction)">Uplift</a></li> <li><a class="mw-selflink selflink">Xenoarchaeology</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Technological</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Artificial_intelligence_in_fiction" title="Artificial intelligence in fiction">Artificial intelligence</a> <ul><li><a href="/wiki/AI_takeover_in_popular_culture" title="AI takeover in popular culture">AI takeover</a></li></ul></li> <li><a href="/wiki/Astronomical_engineering" title="Astronomical engineering">Astroengineering</a></li> <li><a href="/wiki/Holography_in_fiction" title="Holography in fiction">Holography</a></li> <li><a href="/wiki/List_of_fictional_robots_and_androids" title="List of fictional robots and androids">Robots</a> and <a href="/wiki/Cyborgs_in_fiction" class="mw-redirect" title="Cyborgs in fiction">Cyborgs</a></li> <li><a href="/wiki/Self-replicating_machines_in_fiction" class="mw-redirect" title="Self-replicating machines in fiction">Self-replicating machines</a></li> <li><a href="/wiki/Simulated_reality" title="Simulated reality">Simulated reality</a></li> <li><a href="/wiki/List_of_fictional_spacecraft" title="List of fictional spacecraft">Spacecraft</a></li> <li><a href="/wiki/Tachyons_in_fiction" title="Tachyons in fiction">Tachyons</a></li> <li><a href="/wiki/Weapons_in_science_fiction" title="Weapons in science fiction">Weapons</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Religious</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Christian_science_fiction" title="Christian science fiction">Christian science fiction</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alternate_history" title="Alternate history">Alternate history</a></li> <li><a href="/wiki/Fantasy" title="Fantasy">Fantasy</a></li> <li><a href="/wiki/Lists_of_fictional_astronauts" title="Lists of fictional astronauts">Fictional astronauts</a></li> <li><a href="/wiki/Fictional_technology" class="mw-redirect" title="Fictional technology">Fictional technology</a></li> <li><a href="/wiki/Future_history" title="Future history">Future history</a></li> <li><a href="/wiki/Horror_fiction" title="Horror fiction">Horror</a></li> <li><a href="/wiki/Magic_realism" class="mw-redirect" title="Magic realism">Magic realism</a></li> <li><a href="/wiki/Museum_of_Science_Fiction" title="Museum of Science Fiction">Museum of Science Fiction</a></li> <li><a href="/wiki/Rubber_science" title="Rubber science">Rubber science</a></li> <li><a href="/wiki/Science_and_technology_studies" title="Science and technology studies">Science and technology studies</a></li> <li><a href="/wiki/Sense_of_wonder" title="Sense of wonder">Sense of wonder</a></li> <li><a href="/wiki/Speculative_fiction" title="Speculative fiction">Speculative fiction</a></li> <li><a href="/wiki/Supernatural_fiction" title="Supernatural fiction">Supernatural</a></li> <li><a href="/wiki/Technology_and_society" title="Technology and society">Technology and society</a></li> <li><a href="/wiki/Weird_fiction" title="Weird fiction">Weird</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><div class="hlist"><ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Science_fiction" title="Category:Science fiction">Category</a></li><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Symbol_portal_class.svg" class="mw-file-description" title="Portal"><img alt="" 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