Nasa's Cassini probe has scooped oxygen from the thin atmosphere of Rhea – the first time the gas has been detected directly on another world.
http://www.guardian.co.uk/science/2010/nov/25/oxygen-saturn-moon-rhea
Nasa's Cassini probe has scooped oxygen from the thin atmosphere of Rhea – the first time the gas has been detected directly on another world.
http://www.guardian.co.uk/science/2010/nov/25/oxygen-saturn-moon-rhea
