Satellite Cassini flew through geyser plumes spouting from Enceladus and gathered ice crystals. These crystals are salt-rich, suggesting that a hidden salty sea lurks beneath Enceladus's icy cap.
Google's salute to Jules Verne has lots of nooks and crannies. Did you find the sunken crown? How about the divers?
Remake of the Jules Verne classic lacks some of the sense of wonder of earlier version despite its splashy special effects.