The ride vehicle for Space Mountain is a 3-seater rocket, with two of the rockets in each train. Seats are positioned front to back, so you'll be pretty much riding solo, which can be scary for younger kids who would prefer to sit next to a parent.

Whether you sit next to someone on Space Mountain depends entirely on which Disney resort you are visiting, as the ride vehicles differ significantly between Florida and California. At Walt Disney World’s Magic Kingdom, the rockets feature a "single-file" seating arrangement where three passengers sit one behind the other in a single row. This means you do not sit side-by-side with anyone; instead, you have your own dedicated seat with a lap bar, offering a more solitary and aerodynamic "bobsled" sensation as you hurtle through the dark. In contrast, at Disneyland Park in California, the ride vehicles are designed with two seats per row, allowing you to sit directly next to a friend or family member. In 2026, Disney has continued to maintain these distinct configurations, though both versions provide a high-speed, indoor outer-space adventure. For those visiting Florida, the lack of side-by-side seating makes it a unique "solo" experience even if you are in the same rocket as your group, whereas the California version is more traditional for those who prefer to share the thrills—and the screams—in real-time with a neighbor.