Tuesday, August 18, 2009

Life on earth is Extraterrestial?

An amino acid called glycine has been found in dust collected by the Stardust spacecraft, which flew by Comet Wild 2 in 2004 (Illustration: NASA/JPL)

Found: first amino acid on a comet

An analysis of comet dust collected by NASA's Stardust probe confirms that some of life's building blocks were delivered to the early Earth from space.

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