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Fatty Acids Alkanes Methane and Ethane Allenes Environmental Chemistry Hydrogen Cyanide Amino Acids Methyl Radical Methane Polycyclic Aromatic Hydrocarbons Isoprene Acetylene Hexane
A radiation-based analysis infers the Gale Crater mudstone once contained far higher levels of long-chain molecules than survive after roughly 80 million years of surface exposure.