Saturn Geyser Moon Hiding Global Ocean

By measuring tiny wobbles in Enceladus' orbit, scientists have figured out that Enceladus has a giant ocean.

Published On 09/16/2015
11:45 AM EDT
An artist's rendering of Enceladus' solid core, liquid subsurface ocean and icy shell, along with hydrothermal vents in the southern pole from which geysers flow. | NASA/JPL-Caltech