title: Planetary science. New results send Mars rover on a quest for ancient life.
authors: Richard A
authors: RA
authors: Kerr
mesh_terms: D002244:Carbon / Q000032:analysis; D018559:Exobiology; D060106:Lakes; D018535:Mars; D009930:Organic Chemicals / Q000032:analysis*
chemical_list: D009930:Organic Chemicals; D002244:Carbon