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The Ancient Solar System...

'Liquid' - in deep frozen interstellar ice.

7 Dec 2017, 23:25 UTC
'Liquid' - in deep frozen interstellar ice.
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The rings of Saturn, made of trillions of ciy particles loaded with organic matter - how far can chemical evolution get in such places? Life arose here on Earth... but how far did purely chemical evolution get towards life, on the planetoids and protoplanets of the early solar system? New research from Hokkaido University implies it might have been further than we thought. Meteorites dating from long before Earth have been found to contain the chemical components of proteins, cell walls, and even building blocks of DNA. Exactly how that happens is badly understood. We know these meteorites are fragments of ancient proto-worlds - worlds which were surprisingly planet like, with liquid water percolating through their rocks, planet like cores and volcanism, out gassing driving short lived atmospheres, and magnetic fields. They could have provided the right environments to process the more primitive chemistry in the Sun's protoplanetary disk.But some meteorites contain relatively advanced pre-biotic chemistry despite showing no sign of ever having gotten above freezing. So where did it come from?Now a surprising explanation has been discovered: Researchers from Hokkaido University in Japan have discovered that simple organic compounds, frozen in interstellar ice, start reacting with each other as ...

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