Hyperion, a moon of Saturn, is one of the largest highly irregular (non-spherical) bodies in the solar system. Enhanced image processing was used to bring out details and color differences in this photo taken by the Cassini spacecraft. Hyperion is entirely saturated with deep, sharp-edged craters that give it the appearance of a giant sponge. Dark material fills the bottom of each crater. – NASA Cassini

Related channels: SATURN, ENCELADUS (SATURN MOON), CASSINI (SPACECRAFT), MIMAS (SATURN MOON), HYPERION (SATURN MOON), JUPITER