Ganymede

New Horizons’ LORRI snaps this image of Ganymede, Jupiter’s largest moon from a distance of 3.5 million km (2.2 million miles). Dark patches of ancient terrain are broken up by swaths of brighter, younger material, and the entire icy surface is peppered by more recent impact craters that have splashed fresh, bright ice across the surface. With a diameter of 5,268 kilometers (3,273 miles), Ganymede is the largest satellite in the solar system.