title: Journal club. An astrobiologist considers life's oldest oxygen.
authors.affiliation: Old Dominion University, Norfolk, Virginia, USA.
authors.forename: Nora
authors.initials: N
authors.lastname: Noffke
mesh_terms: D001272:Atmosphere / Q000737:chemistry; D015415:Biomarkers / Q000032:analysis*; D000458:Cyanobacteria / Q000378:metabolism*; D005057:Eukaryotic Cells / Q000378:metabolism*; D019418:Evolution, Chemical; D018559:Exobiology; D005580:Fossils; D009792:Oceans and Seas; D000069497:Origin of Life; D010100:Oxygen / Q000032:analysis* / Q000378:metabolism; D013019:South Africa
chemical_list: D015415:Biomarkers; D010100:Oxygen