Manned Maneuvering Unit
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The Manned Maneuvering Unit is an astronaut propulsion unit that was used by NASA on three Space Shuttle missions in 1984, STS-41-B, STS-41-C, and STS-51-A. The MMU allowed the astronauts to perform u
U.S. astronaut Bruce McCandless uses a Manned Maneuvering Unit during the 1984 STS-41-B mission
Robert L. Stewart became the second person to use the Manned Maneuvering Unit
SMM being captured, 1984
Dale Gardner retrieves Westar 6.
Simplified Aid For EVA Rescue is a small, self-contained, propulsive backpack system worn during spacewalks, to be used in case of emergency. If an astronaut were to lose physical contact with their s
Manned Maneuvering Unit
…pair of faulty communications satellites, Westar VI and Palapa B2. Following the third mission the unit was retired from use. A smaller successor, the Simplified Aid For EVA Rescue (SAFER), was first flown in 1994; it is intended for emergency use only. The unit featured redundancy to protect against failure of individual systems…
Astronaut Rick Mastracchio working with a SAFER system attached.
SAFER