Jupiter Moon Ganymede May Have An Ocean

matth writes: "This article talks about how Jupiter's moon, Ganymede, may have a salt water ocean on it. Kind of interesting in light of all we have been talking about with water on planets and what not. If NASA does find water on a planet, the implications could be outstanding, on the other hand, they have yet to find any water on any planet for sure.. yet.... More on Ganymede here."