One of Cassini’s greatest discoveries has been the ice geysers pouring out of Saturn’s moon Enceladus. It appears, that this icy moon isn’t alone. Two other Saturnian moons are generating great gouts of icy particles too, suggesting that they might be active geologically.
In addition to the particles tracked back to Enceladus, Cassini’s instruments picked up a stream of particles that originated from Tethys and Dione.
Future flybys are planned for Tethys and Dione, so Cassini will be able to get a closer look in the future. Until then, researchers will have to go back and take another look at the data gathered when the spacecraft made its flybys in 2005.
Original Source: ESA News Release