Bruce McCandless II, US astronaut who conducted the first untethered spacewalk (born 1937)

Bruce McCandless II

American aviator and astronaut (1937–2017)

Bruce McCandless II was an American Navy officer and aviator, electrical engineer, and NASA astronaut. In 1984, during the first of his two Space Shuttle missions, he completed the first untethered spacewalk by using the Manned Maneuvering Unit.