Wednesday, March 28, 2012

Did Comets Bring Life To Earth?

Photo: The combination of water, energy and amino acids – which bind together to form proteins – could have caused the first chemical reactions which are believed to be the origin of life Photo: ALAMY

Life Brought To Earth By Comets -- The Telegraph

Life on Earth may have been sparked by comets carrying with them the key ingredients for our existence, scientists claim.


NASA scientists have replicated the impact of a comet and demonstrated that amino acids, a building block of life, could have survived the intense heat and shock waves given off in the collision.

The combination of water, energy and amino acids – which bind together to form proteins – could have caused the first chemical reactions and created proteins, the researchers said.

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