Saturn’s moon of Enceladus. Credit: NASA/JPL/Space Science InstituteSaturn’s Inner Large Moons steroids, which orbit within the E Ring (see below), include the larger satellites Mimas, Enceladus, Tethys, and Dione. These moons are all composed primarily of water ice, and are believed to be differentiated into a rocky core and an icy mantle and crust. steroids […]