Worries about spreading Earth microbes shouldn't slow search for life on Mars
- Written by Alberto G. Fairén, Research Scientist at Centro de Astrobiología, Spain, and Visiting Scientist in Astronomy, Cornell University
The Viking landers in the 1970s were the last to look directly for life on Mars.NASA/JPL, CC BYThere may be no bigger question than whether we are alone in our solar system. As our spacecraft find new clues about the presence of liquid water now or in the past on Mars, the possibility of some kind of life there looks more likely. On Earth, water...
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