Over at the official site the headline reads Cassini Finds Global Ocean In Saturn’s Moon Enceladus, which isn’t an overnight discovery. They had to go back over images takes across the past seven years and carefully measure the wobble it goes through in its orbit to prove the liquid water below its ice shell pretty much covered the globe, instead of being confined to the southern pole as they had originally thought. Now the mystery is what keeps it liquid, and what do the simple organic molecules contained in the water vapor being vented at the south pole indicate about the possibilities of its evolving life of some kind.
