title: Planetary science. How an alluring geologic enigma won the Mars rover sweepstakes.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Kerr
mesh_terms: D018559:Exobiology; D005118:Extraterrestrial Environment; D055593:Geological Phenomena; D018535:Mars; D008903:Minerals; D018531:Spacecraft; D014867:Water
chemical_list: D008903:Minerals; D014867:Water