title: Planetary science. Liquid water found on Mars, but it's still a hard road for life.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Kerr
mesh_terms: D018559:Exobiology; D005118:Extraterrestrial Environment; D019369:Life; D018535:Mars; D010472:Perchlorates; D018531:Spacecraft; D013696:Temperature; D014867:Water
chemical_list: D010472:Perchlorates; D014867:Water