Phobos
Deimos
The moons of Mars are Phobos, and Deimos and they orbit Mars. They are small, and they are some of the smallest bodies in the game. Many use them for extending their colonies on Mars, or landing on them to drill rock samples and returning them to Earth. The pair both have extremely low gravity, so orbit insertion, and docking is quite easy.
To get into orbit around Mars's moons, rendezvous (so your trajectories intersect; see Rendezvous and Docking Tutorial and Trajectory Correction Maneuvers).
| Moons of Jupiter |
| Moons of Saturn |
| Moons of Uranus |
| Moons of Neptune |
| Moons of Pluto |