The Kuiper Belt is a region of the Solar System beyond the planets, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun. It is similar to the Asteroid Belt, but it is far larger—20 times as wide and 20 to 200 times as massive. Like the asteroid belt, it consists mainly of small bodies, or remnants from the Solar System's formation. Although most asteroids are composed primarily of rock and metal, most Kuiper belt objects are composed largely of frozen volatiles (termed "ices"), such as methane, ammonia and water. The Kuiper belt is home to at least three dwarf planets: Pluto, Haumea, and Makemake. Some of the Solar System's moons, such as Neptune's Triton and Saturn's Phoebe, are also believed to have originated in the region.
The Kuiper Belt is a galactic location mentioned in WALL•E. It is the area where the Space Tours would start is presumed to be in the Kuiper Belt. It is unknown if the Kuiper Belt was just the Axiom's destination or if the other BNL Starliners and Executive Starliners went to other places in the galaxy. It is "the enigmatic frontier of our Solar System, where fragments of our primordial planetary disc still wait to be explored." In the film, the Kuiper Belt is depicted as a dark interstellar cloud, while in real life, it is an Asteroid Belt-like region located just beyond the orbit of Neptune and contains a majority of the Solar System's dwarf planets like Pluto, Eris, Haumea, and Makemake.
|Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | Planet Nine | Chaos | Nemesis|
|Ceres | Pluto | Eris | Makemake | Haumea | Orcus | Sedna|
|Luna | Phobos | Deimos | Io | Sinope | Ganymede | Europa | Callisto | Amalthea | Metis | Megaclite | Himalia | Elara | Dia | Pasiphae | Lysithea | Carme | Callirrhoe | Themisto | Taygete | Adrastea | Chaldene | Harpalyke | Kalyke | Iocaste | Erinome | Isonoe | Praxidike | Autonoe | Thyone | Hermippe | Aitne | Titan | Hyperion | Enceladus | Tethys | Mimas | Dione | Rhea | Iapetus | Phoebe | Janus | Epimetheus | Helene | Telesto | Calypso | Atlas | Prometheus | Pandora | Pan | Methone | Pallene | S/2004 S 17 | Miranda | Titania | Ariel | Umbriel | Oberon | Triton | Thalassa | Larissa | Despina | Charon | Nix | Hydra | Kerberos | Styx | Dysnomia | Vanth|
|Juno | Pallas | Vesta | Chiron | Ida | Dactyl|
|Asteroid Belt | Kuiper Belt|