Robert L. Gibson

NASA History
Bruce McCandless
Humans in Space
Robert L. Gibson
STS-41B
As astronaut Bruce McCandless II flew the Manned Maneuvering Unit (MMU) out of the space shuttle Challenger’s payload bay for the first time on February 7, 1984, many in the agency were fearful about the use of a self-propelled and untethered backpack in space.  (Previous spacewalkers remained connected to the vehicle with tethers.
Posted February 3, 2024
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