Biology – Quantitative Biology – Biomolecules
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001iaop.work....3b&link_type=abstract
Forum on Innovative Approaches to Outer Planetary Exploration 2001-2020, p. 3
Biology
Quantitative Biology
Biomolecules
Oxidation-Reduction Reactions, Satellite Atmospheres, Titan, Organic Compounds, Atmospheric Composition, Space Exploration, Biochemistry, Surface Reactions
Scientific paper
Saturn's largest moon Titan has a cold, very dense nitrogen atmosphere rich in methane and the hydrocarbon and nitride products of methane photolysis. Sources of energy for atmospheric chemistry include solar ultraviolet radiation, Saturn magnetospheric particles, and galactic cosmic rays. The chemistry of Titan's atmosphere, while interesting from the point of view of planetary photochemistry, is largely free radical driven and therefore not particularly suited to the synthesis of polymeric biomolecules or even their precursors. However, the nature of Titan's atmosphere, in particular its redox state (hydrogen escapes rapidly and is under abundant compared to in the giant planets), and the presence of a variegated surface make consideration of surface chemistry on Titan interesting from an astrobiological viewpoint. Additional information is contained in the original extended abstract.
Beauchamp James
Beauchamp Pierre
Dougherty Daniel
Lunine Jonathan
Raulin François
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