* Earth: 1 moon
* Mars: 2 moons (Phobos and Deimos)
* Jupiter: 79 moons (with many more likely undiscovered)
* Saturn: 82 moons (with many more likely undiscovered)
* Uranus: 27 moons
* Neptune: 14 moons
Mercury and Venus are the only planets in our solar system that do not have any moons.