|
|
|
|
|
|
by wiml
1977 days ago
|
|
|
Banks' "Orbitals" are smaller rings, perhaps planet-diameter, orbiting at a distance from their star; "Rings" are Niven-Ringworld-style structures with a star in the middle. Spheres are mentioned here and there, I think, just called "spheres". |
|
|