All of the planets in our solar system, except for Mercury and Venus, have at least one satellite (also called a moon).

Here's a breakdown:

* Mercury: No moons

* Venus: No moons

* Earth: 1 moon

* Mars: 2 moons

* Jupiter: 79 moons

* Saturn: 82 moons

* Uranus: 27 moons

* Neptune: 14 moons