the following moons in our solar system have been visited by spacecraft:
- Earth's Moon (Lunar Reconnaissance Orbiter, Apollo missions)
- Phobos (Phobos 2, Mars Express)
- Deimos (Mars Express)
Jupiter's Moons: 4. Io (Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Galileo, New Horizons)
- Europa (Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Galileo)
- Ganymede (Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Galileo)
- Callisto (Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Galileo)
Saturn's Moons: 8. Titan (Voyager 1, Voyager 2, Huygens, Cassini)
- Enceladus (Voyager 2, Cassini)
- Mimas (Voyager 1, Voyager 2, Cassini)
Uranus's Moons: 11. Miranda (Voyager 2)
Neptune's Moons: 12. Triton (Voyager 2)
Please note that this information is up to 2021, and there may have been additional missions or updated data since then.