Callisto - Voyager 2

Color image of Jupiter's satellite, Callisto, from 2.3 million km

Callisto
Voyager 2 image of Jupiter's moon Calisto. This image was taken from over 2 million km away as the spacecraft approached Jupiter. The bright spots peppering the surface are meteorite impact craters which have excavated through the dark surface and exposed the lighter material below. Callisto is 4,800 km in diameter. (Voyager 2, P-21740)

Callisto;
Galilean Satellites
Impact Cratering
Voyager Missions