title: Planetary science. Question of martian methane is still up in the air.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Kerr
mesh_terms: D018559:Exobiology; D005118:Extraterrestrial Environment; D019369:Life; D018535:Mars; D008697:Methane; D018531:Spacecraft
chemical_list: D008697:Methane