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Was Life On Earth Seeded By Rocks Carrying Alien Microbes?

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At www.astrobiology.com

Microorganisms that crashed to Earth embedded in the fragments of distant planets might have been the sprouts of life on this one, according to new research from Princeton University, the University of Arizona and the Centro de Astrobiologia (CAB) in Spain. The researchers report in the journal Astrobiology that under certain conditions there is a high probability that life came to Earth -- or spread from Earth to other planets -- during the solar system's infancy when Earth and its planetary neighbors orbiting other stars would have been close enough to each other to exchange lots of solid material. The work will be presented at the 2012 European Planetary Science Congress on Sept. 25. The findings provide the strongest support yet for 'lithopanspermia,' the idea that basic life forms are distributed throughout the universe via meteorite-like planetary fragments cast forth by...

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At www.astrobiology.com


 

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[[VID46]]Life on Earth may have begun when meteor-... by Kyle McDermott on Wednesday, Sep 26, 2012 at 6:58:58 PM