Air on moon of Saturn
NASA's Cassini spacecraft has detected a very tenuous atmosphere known as an exosphere, infused with oxygen and carbon dioxide around Saturn's icy moon Rhea. This is the first time a spacecraft has directly captured molecules of an oxygen atmosphere - albeit a very thin one -- at a world other than Earth.
It's not a lot of air, and Rhea doesn't have any liquid water to support life (as we know it anyway), but it opens up the idea that oxygen atmosphere's can occur in ore places than we expect and might be much more common than previously thought.
It's not a lot of air, and Rhea doesn't have any liquid water to support life (as we know it anyway), but it opens up the idea that oxygen atmosphere's can occur in ore places than we expect and might be much more common than previously thought.