

Image credit: Rockwell International
Image source: Mike Acs

Image credit: NASA
Image source: National Archives

Image credit: NASA
Image source: National Archives




Image credit: NASA
Image source: National Archives

Image credit: NASA
Image source: National Archives

Three-armed LORL is shown in this artist’s sketch. Center hub, which contains parking area for several space ferries, does not rotate and thus remains weightless. Under the parking area is a laboratory for study of weightlessness. The three arms rotate around the hub to create artificial gravity. Cutaway of one arm shows it to contain a series of rooms for other laboratory requirements and studies.
Orbiting Stations: Stopovers to Space Travel
Irwin Stambler
G.P. Putnam’s Sons, 1965
Image credit: North American Aviation
Image source: Numbers Station

Image credit: NASA
Image source: Mike Acs

Complex space vehicles from Earth in orbit around Mars some time in the late 70’s, as visualized by today’s engineers.
The Next Fifty Years in Space
by Erik Bergaust
Macmillan, 1964
Image credit: Rocketdyne
Image source: Numbers Station