Are you a Martian? We all could be, scientists say -- and new instrument might provide proof

Wednesday, March 23, 2011 - 10:30 in Astronomy & Space

Are we all Martians? According to many planetary scientists, it's conceivable that all life on Earth is descended from organisms that originated on Mars and were carried here aboard meteorites. If that's the case, an instrument being developed by researchers at MIT and Harvard could provide the clinching evidence.

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