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{{Redirect|Origin of life|non-scientific views on the origins of life| Creation myth}} {{For|the oldest life forms| Earliest known life forms}} ...

...ese observations lead many scientists to reassess the present habitability of Mars]] ...erhaps next to geological hotspots or in the deep hydrosphere? Objective B of NASA's first Mars Science Goal is to investigate these potential habitats: ...

TEST OF IMPORT OF PAGE FROM: [https://www.science20.com/robert_walker/will_first_mars_astrona ...tian life is independently evolved. And if the more optimistic projections of Elon Musk, some NASA enthusiasts, and Bill Nye and others are fulfilled, th ...

...oposals for a Mars Receiving Facility - the LAS version with extensive use of robotic handlers for the samples]] ...deline in [[Wikipedia:Quotations#Recommended_use_of_quotations]]: "Editors of controversial subject should quote the actual spoken or written words to re ...

...requirements; its implementation remains the gold standard today."}}</ref> of present-day planetary protection. ...d parts of the spacecraft, so this was enough for a million-fold reduction of the originally low population).<ref name=JPL2011/> ...

| caption = View of trailing hemisphere in natural color<ref name="caption" group="lower-alpha" ...last11= Tortora|first11= P.|title=The Gravity Field and Interior Structure of Enceladus |journal= Science|volume= 344|issue= 6179|year= 2014|pages= 78–80 ...

...istence of habitable conditions does not necessarily indicate the presence of life. ...nasa_finds_ice_under_martian_surface/ |title=Lake of frozen water the size of New Mexico found on Mars – NASA |publisher=The Register |date=November 22, ...

...abitable planet|a list of potentially habitable planets found to date|List of potentially habitable exoplanets}} ....jpg|thumb|Understanding planetary habitability is partly an extrapolation of the conditions on Earth, as this is the only [[planet]] known to support [[ ...

[[File:Diagram of different habitable zone regions by Chester Harman.jpg|thumb|300x300px|A di ...ts within it may be instrumental in determining the scope and distribution of Earth-like [[extraterrestrial life]] and [[extraterrestrial intelligence|in ...

| adjectives = Titanean, Titanian<ref>"Titanian" is the adjectival form of both Titan and Uranus's moon [[Titania (moon)|Titania]]. The latter may be ...first14=J. R. | last14=Stauch| date=December 2006| title=The Gravity Field of the Saturnian System from Satellite Observations and Spacecraft Tracking Da ...

...ius = {{val|670900|u=km}}<ref name="factsheet">{{cite web |title=Overview of Europa Facts |work=NASA |url=http://solarsystem.nasa.gov/planets/profile.cf ...rst=Bruce G. |title=Free and forced obliquities of the Galilean satellites of Jupiter |date=2005 |volume=175 |issue=1 |pages=233–247 |doi=10.1016/j.icaru ...

...|300px|Panspermia proposes that bodies such as [[comets]] transported life forms such as [[bacteria]] - complete with their [[DNA]] - through space to the E ...author= Rampelotto, P. H. |year= 2010|title= Panspermia: A promising field of research|journal= Astrobiology Science Conference|volume= 1538|page= 5224|b ...

{{Needs-Attention|Soome parts - e.g. Mars mateiral are several years out of date}} {{See also|Abiogenesis|Earliest known life forms|Panspermia}} ...

*[[Robotic spacecraft|Robotic exploration]] of the [[Solar System]] (image: [[Curiosity (rover)|''Curiosity'' rover]] on [ ...elsewhere in the universe. The science of extraterrestrial life in all its forms is known as [[exobiology]]. ...

...e alternatives to those in our biosphere and that might support novel life forms altogether different from those on Earth."—NASA Astrobiology Roadmap 2008<r ...arbon compounds, compounds of another element, or another solvent in place of water. ...

M.A., University of Notre Dame<br /> ...s an emeritus professor of clinical psychology at the California Institute of Integral Studies (CIIS). ...

..., subsequently, [[human intelligence]]) required an improbable combination of [[astrophysics|astrophysical]] and [[geology|geological]] events and circum ...an astronomer and astrobiologist, both faculty members at the [[University of Washington]]. ...

...in the cold [[Mars|Martian]] conditions. They found that the trace amounts of oxygen in its thin atmosphere get concentrated into oxygen-rich brines once This is an expanded verson of the Wikinews article [https://en.wikinews.org/wiki/Simple_animals_could_liv ...

...not yet detected). It excludes sites that are thought to be analogues only of conditions on early Mars, geological analogues, or analogues used only for ...oles of [[Mount Erebus]], hot springs, or the sulfur rich mineral deposits of the Rio Tinto region in Spain. ...

.... [[chemosynthesis|Chemosynthetic]] bacteria and [[archaea]] form the base of the [[food chain]], supporting diverse organisms, including [[giant tube wo ...strates the [[Water (molecule)#Density of water and ice|anomalous behavior of water]]. The dotted green line marks the [[melting point]] and the blue lin ...