Oxygen detected in atmosphere of Saturn's moon Dione: Discovery could mean ingredients for life are abundant on icy space bodies

An international research team has discovered molecular oxygen ions (O₂+) in the upper-most atmosphere of Dione, one of the 62 known moons orbiting the ringed planet. The research was made possible via instruments aboard NASA's Cassini spacecraft.

Source: Oxygen detected in atmosphere of Saturn's moon Dione: Discovery could mean ingredients for life are abundant on icy space bodies