Comet Contains One of Life’s Building Blocks

stardustNASA scientists have found glycine in the samples the Stardust spacecraft collected from the dust and gas around the comet Wild 2. As Jamie Elsila of NASA’s Goddard Space Flight Center explains:

Glycine is an amino acid used by living organisms to make proteins, and this is the first time an amino acid has been found in a comet. Our discovery supports the theory that some of life’s ingredients formed in space and were delivered to Earth long ago by meteorite and comet impacts.

Category: Space


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