Prebiotic chemistry in the solar system

Computer Science

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Atmospheric Composition, Chemical Evolution, Interstellar Chemistry, Planetary Evolution, Primitive Earth Atmosphere, Abiogenesis, Biogeny, Comets, Meteorites, Stellar Evolution, Titan

Scientific paper

Forty years of experimental studies in prebiotic chemistry are summarized. Most of the building blocks of the living systems have been synthesized in conditions plausible to conditions found on the primitive Earth. The starting ingredients belong to two complementary classes: volatile organics, and their non volatile oligomers. They may have been formed in the atmosphere on the primitive Earth and/or imported by extraterrestrial sources. Organic molecules are found in meteorites, comets, in the giant planets and several of their satellites. Again this chemistry presents two complementary aspects. With a dense reduced atmosphere rich in organic compounds in gas and aerosol phases, Titan appears to be a natural laboratory for studying prebiotic chemistry on a planetary scale.

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