The Kuiper Belt is a galactic location mentioned in WALL•E. It is the area where the Space Tours would start. 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.
Gallery[]
The Axiom's path as shown in Captaining the Axiom
Physical appearance of the Kuiper Belt in Captaining the Axiom
A second view
A third view