More Evidence Mars Could Have Hosted Life

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More Evidence Mars Could Have Hosted Life
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Mars may have once been capable of supporting microbial life for hundreds of millions of years in the distant past, new findings from a long-lived Red Planet rover suggest.

NASA's Opportunity rover, which celebrates 10 years of Mars exploration today (Jan. 24), has uncovered evidence that benign, nearly neutral-pH water flowed on the Red Planet around 4 billion years ago.
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