THE MANNED MANEUVERING UNIT IN SPACE

Astronaut Bruce McCandless on a spacewalk using the manned maneuvering unit (MMU) on STS-41B, February 1984. NASA and Martin Marietta Corporation were awarded the Collier Trophy in 1984 for the development of the MMU, and for being the NASA teams that rescued three disabled satellites, with special recognition to astronaut Bruce MeCandless II, NASA's Charles E. Whitsett, Jr. and Martin Marietta's Walter W Bollendonk. (NASA photo no. 84-H-71).