Thursday, August 29, 2013

Did Life Come to Earth From Mars?


If the phenomena of Star Trek, Area 51, Ancient Aliens, or War of the Worlds can be taken as anthropological clues, humanity is consumed with curiosity about the possibility of life beyond Earth. Do any of the 4,437 newly discovered extrasolar planets contain traces of life? What would these life forms look like? How would they function? If they came to Earth, would we share ET-esque embraces or would the visit be more a Battle Los Angeles style throw down?

Life outside of Earth has spawned endless interest, but less public interest seems to be given to how life on Earth began 3 to 4 billion years ago. But the two topics, it turns out, might be more connected than one would believe–in fact, it’s possible that life on Earth really began outside of Earth, on Mars.

At this year’s Goldschmidt conference in Florence, Steve Benner, a molecular biophysicist and biochemist at the Foundation for Applied Molecular Evolution will present this idea to an audience of geologists. He’s well aware that half the room will be adamantly against his idea. “People will probably throw things,” he laughs, hinting at a consciousness of how out-of-this-world his ideas sound. But there’s scientific basis for his assertion (PDF), a logical reason for why life maybe truly did begin on Mars.

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