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Phoenix's atmospheric measurements of isotope ratios of carbon and oxygen gave evidence for liquid water on the surface now or in the recent geological past.[1]Also its 2008 observations of possible droplets on its legs suggested new ways that water could be stable temporarily on Mars.[2] These observations lead many scientists to reassess the present habitability of Mars
- ↑ Phoenix Mars Lander Finds Surprises About Planet’s Watery Past University of Arizona news, By Daniel Stolte, University Communications, and NASA's Jet Propulsion Laboratory | September 9, 2010
- ↑ First liquid water may have been spotted on Mars, New Scientist, February 2009 by David Shiga
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On life on Mars:
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