.The King of the Planets might certainly not have one of the most moons, but 4 of Jupiter's 95 moons are actually undoubtedly the easiest to view with a small pair of binoculars or a small telescope since they form a very clear line. The Galilean Moons-- Ganymede, Callisto, Io, and Europa-- were initial uncovered in 1610 and they continue to blow away stargazers around the world.