The Gateway Foundation's Von Braun Rotating Space Station

Rings

The space station structure will consist of two concentric structural rings fixed together with a set of spokes supporting a Habitation Ring made-up of large modules:

The Docking Hub (Inner Ring)

An un-pressurized ring structure with docking arms and stabilizers designed to capture and lock in place a visiting spacecraft to unload passengers and cargo.  At first there will be one docking port, but later we will add another so that two craft can be docked to the station at the same time.

All passenger and cargo access to the station will be through a set of pressurized access tubes connecting the Docking Hub to the Outer Ring Truss.

from Hacker News https://ift.tt/2VP2FQa