Tuesday, August 9, 2011

News from space: DNA was there first

Amazing news from NASA today - the building blocks of DNA have been found in asteroids from space.  Maybe Earth's primordial soup was seeded with DNA building blocks, an idea I think is very likely.  Of course it just means that DNA and its building blocks evolved somewhere else in the universe.  I wonder if living cells evolved anywhere else?  Why wouldn't it have?  Fascinating! 

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