title: Life:  a cosmic imperative?
authors.affiliation: Planetary Systems Branch, NASA Ames Research Center, California, USA.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Pendleton
authors.forename: J D
authors.initials: JD
authors.lastname: Farmer
mesh_terms: D018534:Earth, Planet; D019418:Evolution, Chemical; D019419:Evolution, Planetary; D018559:Exobiology; D005118:Extraterrestrial Environment; D017752:Greenhouse Effect; D018535:Mars; D019110:Meteoroids; D000069497:Origin of Life; D018536:Venus; D018707:Volcanic Eruptions; D014867:Water
chemical_list: D014867:Water