NASA Space Shuttle Discovery STS-64 mission prime crew astronaut Mark Lee floats freely without tethers as he tests the new Simplified Aid for EVA Rescue (SAFER) system during a spacewalk September 16, 1994 in Earth orbit. (photo by NASA Photo via Planetpix)

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Size: 5150px × 3425px
Photo credit: © NASA Photo / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: activity, aid, astronaut, crew, discovery, earth, eva, exploration, extravehicular, floating, floats, horizontal, lee, mark, mission, nasa, orbit, prime, rescue, rocket, safer, science, shuttle, simplified, space, spacecraft, spacewalk, sts-64, technology, testings, tests