Mars: The New Evidence - S5.E2
A look for evidence of life on Mars which provides many clues that it now, or once had supported it; from the remains of lakes and rivers that once flowed on the surface; to the water ice frozen at the poles; to the seasonal changes in methane gases that may prove bacterial life still thrives underground.
Mars: The New Evidence - S5.E2
August 5, 2010
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