Space structures, from spaceships to space stations and dyson spheres, are very important elements of many sci-fi worlds. If you're wondering which article template to use on World Anvil to write about this, here are some recommendations.
- Typical spaceship: A typical spaceship used for transportation is a vehicle, so the most appropriate template is the Vehicle template.
- Space stations: A space structure designed for people to live in it is either a Settlement or a Building, depending on its scale. For example, a small research station might be considered a building, but if it's larger and people not only work but also live there, it might be considered a settlement instead.
- Dyson spheres (and similar structures): These structures are Buildings, even if they aren't designed for people to live in them. If you're writing about the concept of a Dyson sphere in general rather than a specific instance of it, use the Technology instead instead.
- Probes and other small objects: A small space object that doesn't remain static and is made for a specific purpose could be an Item if it's not a Vehicle.
If none of the specific templates quite fit what you have in mind, you can always use a Generic Article. For more information and help with article templates, check how to use article templates.