Moon-forming giant impact caused a giant magma ocean on Earth; life appeared millions of years later, hitching a ride on a Martian rock, a scientist says.
from SPACE.com http://www.space.com/23514-moon-crash-earth-magma-ocean.html
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from SPACE.com http://www.space.com/23514-moon-crash-earth-magma-ocean.html
via IFTTT