An artist's depiction of Enceladus, a small moon that orbits Saturn. Here the distant sun is seen shining through a myriad of tiny ice particles, which act as prisms and cause a halo in Enceladus' sky. Enceladus is the home to much geologic activity in the form of powerful geysers. The constant eruptions of these geysers not only feed a thin atmosphere of ice particles, they also supply material for Saturn's E ring, through which this moon orbits. Saturn, its ring system seen edge-on, shows as a thin crescent above the frigid landscape.