Astronaut Carl Walz waves at his colleagues from the aft end of the Space Shuttle Discovery's payload bay. During this 1993 spacewalk, Walz evaluated tools, tethers, and a foot restraint designed for use in a weightless environment while orbiting Planet Earth.
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& Michigan Tech. U.
Based on Astronomy Picture Of the Day
Publications with keywords: space shuttle - astronaut
Publications with words: space shuttle - astronaut