Cassini spacecraft image of Saturn's moon Mimas. At right is the Herschel Crater, which measures 139 kilometres in diameter. The peak within the crater is almost as tall as Mount Everest on Earth. 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 22nd October 2016 at an approximate distance of 185,000 kilometres from Enceladus.