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UV shielding of NH3 and O2 by organic hazes in the Archean atmosphere
The late Archean atmosphere was probably rich in biologically generated CH4 and may well have contained a hydrocarbon haze layer similar to that observed today on Saturn's moon, Titan. Here we… Expand
The Molecular Origins of Life: The early atmosphere as a source of biogenic compounds
Methane concentrations in the Earth's prebiotic atmosphere
Methane is a key atmospheric constituent in origin of life theories that rely on an atmospheric source of reduced organic compounds. A CO2/N2-dominated primitive atmosphere (Holland, 1984), or even a… Expand
First-Year Women in Science and Engineering Research: Attuning Programs to Benefit Average Students