Biotic molecular samples exhibit consistently higher diversity than abiotic ones, providing a statistical biosignature based on relative abundances that persists under degradation.
T.et al.Extraterrestrial amino acids and amines identified in asteroid Ryugu samples returned by the Hayabusa2 mission.Geochimica et Cosmochimica Acta347, 42–57 (2023)
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Molecular diversity as a biosignature
Biotic molecular samples exhibit consistently higher diversity than abiotic ones, providing a statistical biosignature based on relative abundances that persists under degradation.