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How many planets in our solar system have no moons?

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As of October 2008, there are known natural moons orbiting planets in our Solar System. moons orbit the "full-size" planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune), while moons orbit the smaller "dwarf planets" (Ceres, Pluto, Haumea, Makemake, and Eris). read more

Only two planets have no moon. Mercury has no moon. Venus also has no moon. Earth has one moon. Mars has 2 moons. Jupiter has 67 moons, the most out of the planets in our solar system. Saturn has 62 moons, the second planet to have the most moons. Uranus has 27 moons. Neptune has 14 moons. Finally, Pluto has 3 moons. read more

Two. Both Mercury and Venus have no known moons. They are the two planets closest to the Sun. read more

List. This is a list of the recognized moons of the planets and of the five recognised dwarf planets of the Solar System. The 19 moons that are large enough to have been rounded by their own gravity are listed in bold. read more

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