Skip to main content

Extraterrestrial life Related pages | References | Other websites | Navigation menuActual AliensPBS: Exploring Space - The Quest for Life by Scott Pearsonufoskeptic.org by Bernard Haisch"What Aliens Might Look Like"Top stars picked in alien search

Extraterrestrial life


lifeplanetEarthplanetsevolveMarssignalsstar systemsexoplanets












Extraterrestrial life




From Wikipedia, the free encyclopedia






Jump to navigation
Jump to search


Extraterrestrial life is life that is not from the planet Earth. It is alien life. It is reasonable that planets rather like ours exist, and that life might evolve there also. So far none has been found, though it is possible that life once existed on Mars.[1]


Searches have been made for signals from extraterrestrial life-forms.[2] No signals have been received.


It is not a new idea. Quite a few philosophers have speculated on the existence of other planets like ours, with the idea that what happened here could also happen there.[3][4] One thing we do know is that many other star systems do have exoplanets.



Related pages |


  • Astrobiology


References |




  1. ↑ Sagan, Carl & Shklovskii I.S. 1966. Intelligent life in the Universe. Random House.


  2. ↑ Sagan, Carl 1973. Communication with extraterrestrial intelligence. MIT Press. .mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
    ISBN 0-262-19106-7


  3. ↑ Crowe, Michael J. 1986. The Extraterrestrial life debate, 1750–1900. Cambridge.
    ISBN 0-521-26305-0


  4. ↑ Crowe, Michael J. 2008. The extraterrestrial life debate Antiquity to 1915: a source book. University of Notre Dame Press.
    ISBN 0-268-02368-9




Other websites |



  • Actual Aliens: Extraterrestrial News and Current Events


  • PBS: Exploring Space - The Quest for Life by Scott Pearson


  • ufoskeptic.org by Bernard Haisch


  • "What Aliens Might Look Like" from National Geographic

  • Top stars picked in alien search




Retrieved from "https://simple.wikipedia.org/w/index.php?title=Extraterrestrial_life&oldid=6185430"










Navigation menu


























(RLQ=window.RLQ||[]).push(function()mw.config.set("wgPageParseReport":"limitreport":"cputime":"0.108","walltime":"0.134","ppvisitednodes":"value":667,"limit":1000000,"ppgeneratednodes":"value":0,"limit":1500000,"postexpandincludesize":"value":3827,"limit":2097152,"templateargumentsize":"value":1399,"limit":2097152,"expansiondepth":"value":13,"limit":40,"expensivefunctioncount":"value":0,"limit":500,"unstrip-depth":"value":1,"limit":20,"unstrip-size":"value":7447,"limit":5000000,"entityaccesscount":"value":0,"limit":400,"timingprofile":["100.00% 108.402 1 Template:Reflist","100.00% 108.402 1 -total"," 89.03% 96.511 3 Template:ISBN"," 56.41% 61.148 3 Template:Catalog_lookup_link"," 13.40% 14.522 3 Template:Error-small"," 10.85% 11.759 3 Template:Small"," 7.42% 8.045 9 Template:Yesno-no"," 4.43% 4.807 9 Template:Yesno"," 3.61% 3.911 4 Template:Main_other"," 3.48% 3.773 6 Template:Trim"],"scribunto":"limitreport-timeusage":"value":"0.013","limit":"10.000","limitreport-memusage":"value":894394,"limit":52428800,"cachereport":"origin":"mw1301","timestamp":"20190606162924","ttl":2592000,"transientcontent":false););"@context":"https://schema.org","@type":"Article","name":"Extraterrestrial life","url":"https://simple.wikipedia.org/wiki/Extraterrestrial_life","sameAs":"http://www.wikidata.org/entity/Q181508","mainEntity":"http://www.wikidata.org/entity/Q181508","author":"@type":"Organization","name":"Contributors to Wikimedia projects","publisher":"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":"@type":"ImageObject","url":"https://www.wikimedia.org/static/images/wmf-hor-googpub.png","datePublished":"2006-11-14T01:47:29Z","dateModified":"2018-07-06T14:32:17Z","headline":"lifeform that does not originate from Earth"(RLQ=window.RLQ||[]).push(function()mw.config.set("wgBackendResponseTime":102,"wgHostname":"mw1261"););
-