Ganymede

Ganymede

Callisto, also known as Jupiter's moon Callisto (pronounced/k əˈ l ɪ sto ʊ, Greek: Καλλιστώ), is a satellite that orbits Jupiter and was first discovered by Galileo Galilei in 1610. Europa is the third largest moon in the solar system and the second largest moon of Jupiter, second only to Ganymede.