Orbital Hubs are the rotating anchor locations of the Space Congress. Each hub is a symbolic centre of gravity for a given edition of the Congress, linking regional gatherings into a shared global event. Orbital Hubs are not permanent capitals but waypoints on a long trajectory towards a federated Space Commons.
The hubs express the values of the Space Congress in physical form: decentralised, symbolic, hospitable to non-traditional actors, and more about shared governance than national prestige.