.The Master of the Planets might certainly not have the most moons, but 4 of Jupiter's 95 moons are undoubtedly the simplest to observe along with a tiny pair of field glasses or a small telescope considering that they create a crystal clear line. The Galilean Moons-- Ganymede, Callisto, Io, as well as Europa-- were actually 1st discovered in 1610 and also they continue to impress astrologers across the globe.