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image: Marks of Martians?

Marks of Martians?

By | December 18, 2014

NASA’s Curiosity rover finds chemical signatures that point to the possibility of life on Mars.


image: Summoned From the Depths

Summoned From the Depths

By | March 1, 2014

Geobiologist Roger Summons analyzes organic material in rocks found deep inside Earth, looking for evidence of how life originated and evolved on our planet—and possibly on Mars.  



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