“Life on Earth from comet impacts” add new card

British researchers conducted a simulation experiment show that the basic material of life amino acids can be produced in high-speed collision, which is experimentally the theory of life on Earth from space provides the evidence.

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British researchers conducted a simulation experiment show that the basic material of life amino acids can be produced in high-speed collision, which is experimentally the theory of life on Earth from space provides the evidence.

C is the main component of ice, as well as ammonia, methanol and carbon dioxide and other simple molecules.Lawrence Livermore National Laboratory Neil Goldman, who had previously suggested that comet colliding with the early Earth, releasing tremendous energy will synthesize these simple molecules into more complex amino acids.

Goldman et al published in the new one “Nature – Earth Science” online edition reported that they and the Imperial College London and co-researchers at the University of Kent in the laboratory to produce a mixed composition similar to comet ice, and then with a special high-speed bullet to 7.15 one thousand meters per second shooting. The results show that not only produces a high-speed impact can be composed of amino acids molecules, the heat generated by these molecules will be synthesized amino acids. Their experiments generated glycine, D-alanine and L-alanine and other amino acids. Goldman said the results showed that they had correctly predicted, indicating that the solar system there are new ways to synthesize protein component, also means understanding the basic components of life aspects of “a big step forward.”

But the researchers also said that from a single molecule of water and dry ice mixture to form complex molecules such as amino acids just “the first step toward life.” As to how to form amino acids more complex molecules such as proteins, as well as how these basic ingredients of life under appropriate conditions to form further development and prosperity, is still an unsolved mystery.

The researchers also noted that Saturn’s moon Enceladus and Jupiter’s moon Europa has a lot of ice on the surface, when the meteorite hit to their high surface, it produces amino acids to provide the perfect environment, thus increasing the possibility of the birth of life sex. Therefore, their findings also highlight the two satellites in the future to find signs of life importance.

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