What are the 4 biggest moons of Jupiter?
What are the 4 biggest moons of Jupiter? The Galilean Moons These large moons, named Io, Europa, Ganymede, and Callisto, are each distinctive worlds. How big are Jupiter’s largest moons? Size. Ganymede is the largest and most massive moon in the Solar System. Its diameter of 5,268 km is 0.41 times that of Earth, 0.77 […]