In fact, Ganymede with a diameter of 3,100 miles, is larger than the planets Mercury and Pluto . The swirling Great Red Spot appears at the edge of Jupiter. A hurricane-like storm system that has persisted for over 300 years, two to three earths could fit inside it. Battered Callisto's image was recorded during the 1979 flyby of Voyager . The other portraits were taken by the Galileo spacecraft which began exploring the Jovian system in 1995.
Specific rights apply .