Do all planets have moons?

Not all planets have moons. In the solar system, Mercury and Venus do not have any moons orbiting them. All of the other planets, including the Earth, have one or more natural satellites. read more

Saturn has 53 moons, and that’s not counting Saturn’s beautiful rings. Saturn’s moons have great names like Mimas, Enceladus, and Tethys. One of these moons, named Titan, even has its own atmosphere, which is very unusual for a moon. read more

Ganymede is larger than the planets Mercury and Pluto, and 2/3 the size of Mars. It would be considered a planet if it were orbiting the Sun instead of Jupiter. read more

Quick Answer. Not all planets have moons. In the solar system, Mercury and Venus do not have any moons orbiting them. All of the other planets, including the Earth, have one or more natural satellites. read more

All planets except Mercury and Venus have at least one moon. Saturn has the greatest number of moons—18. In 1995, the Hubble Space Telescope detected what appeared to be four additional moons of Saturn; however, that discovery has yet to be confirmed. read more