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Scientists Discover Cosmic Factory for Making Building Blocks of Life

http://www.sciencedaily.com/releases/2013/09/130915134341.htm

(Por falta de tempo agora, artigo fica registrado para analise posterior)

Sep. 15, 2013 — Scientists have discovered a ‘cosmic factory’ for producing the building blocks of life, amino acids, in research published today in the journal Nature Geoscience.

Comet Hartley 2. Scientists have discovered that when icy comets collide into a planet, amino acids can be produced. These essential building blocks are also produced if a rocky meteorite crashes into a planet with an icy surface. (Credit: NASA/JPL-Caltech/UMD)

The researchers suggest that this process provides another piece to the puzzle of how life was kick-started on Earth, after a period of time between 4.5 and 3.8 billion years ago when the planet had been bombarded by comets and meteorites.

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