Cassini spacecraft image of Saturn's moon Pandora. Pandora is a shepherd moon of Saturn's F ring. It orbits near the edge of the ring and its gravitational force helps to keep the ring well defined. The joint NASA-ESA Cassini-Huygens spacecraft was launched in 1997 and took seven years to reach Saturn and its moons. The Huygens probe separated from Cassini on 25th December 2004, and descended to the surface of Saturn's largest moon, Titan. The Cassini orbiter continued orbiting Saturn; studying its atmosphere and rings and performing flybys of its moons. Image obtained by Cassini's narrow-angle camera on 18th December 2016 at an approximate distance of 40,500 kilometres from Pandora.