Pluto's Moon Charon Is So Big It Makes Pluto Wobble

Moons usually circle their planets without moving them much. Pluto’s largest moon is an exception. NASA states that Pluto, which is smaller than our own Moon, has five moons in its orbit, including Charon, a moon so large it makes Pluto wobble. Pluto lives in a crowded neighborhood at the edge of the solar system. NASA describes it as the best-known member of the Kuiper Belt, a ring of icy bodies almost all smaller than Pluto. Moons are common across the solar system. NASA counts hundreds of moons orbiting planets, dwarf planets and even asteroids, with the giant planets Jupiter and Saturn leading the counts. Two planets go without. Mercury and Venus are the only planets that have no moons at all, although Venus has a quasi-satellite that has officially been named Zoozve.