Meet Dione, a 1122 km-diameter icy satellite of Saturn and the 15th largest moon in the Solar System. This global colour mosaic of the moon’s intriguing surface was produced from images taken by the international Cassini spacecraft during its first 10 years of exploring the Saturn system. See http://www.esa.int/spaceinimages/Images/2017/01/Global_colour_mosaic_of_Dione
