Questions about the four largest satellites of Jupiter.

The Galilean moons are the four largest satellites of Jupiter: Io, Europa, Ganymede and Callisto. The name comes from the fact that they were discovered by Galileo Galilei.

The four Galilean moons were named by Simon Marius after the lovers of the Greek good Zeus.

For questions specifically about one of the Galilean moons, use the tag specific to that moon instead.