Saturn's gravitational pull is responsible for the extraordinary hot geysers on the Enceladus moon that spew water out into space. The particles are ejected from active fissures known as "tiger stripes" at Enceladus's south pole. Salt in the plumes suggest the water may come from a liquid ocean beneath its icy shell. But it had been unclear what was ultimately driving the geological activity on this moon.
The ice fountains of Enceladus Fountains of water ice blast thousands of kilometres above the surface of Saturn's tiny moon Enceladus. It is thought that the pull of Saturn's powerful gravity distorts the moon and heats the interior, forming an underground ocean. When this reservoir of water contacts the vacuum of space it vaporises and explodes above the moon. Any liquid water freezes instantly. Images of the ice fountains were first captured by the Cassini probe.