.The Master of the Planets could not have the best moons, yet 4 of Jupiter's 95 moons are undoubtedly the easiest to see with a little set of field glasses or even a small telescope because they create a crystal clear line. The Galilean Moons-- Ganymede, Callisto, Io, and also Europa-- were 1st uncovered in 1610 and also they continue to astonish across the globe.