Question

What are the Galilean Moons?

Answer 1

The Galilean moons are the four moons of Jupiter discovered by Galileo Galilei. They are the largest of the many moons of Jupiter and have been named Io, Europa, Ganymede, and Callisto. Ganymede, Europa and Io participate in a 1:2:4 orbital resonance.

Answer 2

The Galilean moons are the four largest moons of Jupiter—Io, Europa, Ganymede, and Callisto. They were first seen by Galileo Galilei in January 1610, and recognized by him as satellites of Jupiter in March 1610. They were the first objects found to orbit another planet. Their names derive from the lovers of Zeus.