Boffins spy liquid water on Saturn's moon • The Register
There's little doubt now that the Saturn moon Enceladus hides a vast, liquid ocean beneath its icy surface.
Massive plumes of water vapor discovered by Cassini in 2005 sparked speculation of sub-surface liquid water within the tiny moon. Later, fly-bys found that the massive geysers - whose jet steams supply the material for Saturn's outer-most ring - contain traces of sodium — believed to be the signature of a large body of liquid water with long periods of contact to minerals deep inside Enceladus.
