Space History Photo: Power Tower Space Station Concept

This is an artist's conception of the proposed "Power Tower" space station configuration, shown with the Japanese Experiment Module attached. CREDIT: NASA. View full size image

In this historical photo from the U.S. space agency, an artist's conception of the proposed "Power Tower" space station configuration from June of 1985, is shown with the Japanese Experiment Module attached. This model and several others were examined before deciding on the Space Station Freedom structure that was later abandoned in favor of the International Space Station.

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Each weekday, SPACE.com looks back at the history of spaceflight through photos (archive).