Hubble finds that Pluto has three moons orbiting Pluto.Pluto is the only object beyond Neptune known to have more than one moon.One of the moons, provisionally named S/2005 P1, lies about 48,000 kilometers from Pluto and has an estimated diameter of 56 km. The other newly discovered moon, dubbed S/2005 P2, lies about 64,000 km from Pluto and has a diameter of about 48 km. By comparison, Charon, Pluto’s previously known moon, is 19,600 km from the planet and has a diameter of 1,270 km, about half that of Pluto