74-SL-7200-244A

Image credit: NASA Marshall
Image source: NASA Images

Skylab

Image credit: NASA Marshall
Image source: NASA Images

SPS

In the aftermath of the ’70s oil crisis, Boeing designed a solar power satellite system that could supply most of the the United States with electricity. Boeing’s plan envisioned satellites the size of small cities placed in geosynchronous orbit, transmitting electrical energy back to Earth as microwaves. The satellites would either be constructed in low Earth orbit for later deployment into a higher orbit or constructed directly at the higher orbit.

Image credit: Boeing
Image source: SDASM Archives

Crew Exchange Mission

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Image credit: North American Rockwell
Images: Numbers Station, Ed Dempsey

DC-3

Image credit: North American Rockwell
Image source: Mike Acs