title: Planetary science. Third success reveals a geologic delight.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Kerr
mesh_terms: D005118:Extraterrestrial Environment; D019015:Geologic Sediments; D018535:Mars; D012371:Robotics; D018531:Spacecraft; D014481:United States; D018557:United States National Aeronautics and Space Administration; D014867:Water
chemical_list: D014867:Water