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Astrobiology Magazine

Did comet impacts jump-start life on Earth?

18 Oct 2019, 15:29 UTC
Did comet impacts jump-start life on Earth? Liam Kraus/LLNL
(200 words excerpt, click title or image to see full post)

Comets screaming through the atmosphere of early Earth at tens of thousands of miles per hour likely contained measurable amounts of protein-forming amino acids. Upon impact, these amino acids self-assembled into significantly larger nitrogen-containing aromatic structures that are likely constituents of polymeric biomaterials.

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