On Feb. 3, 1984, space shuttle Challenger took off on its fourth flight, STS-41B. Its five-person crew of Commander Vance D. Brand, Pilot Robert L
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56372 - Space Shuttle Challenger w/SRB (STS-41B) - Dragon Wings Space Series
40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA
Astronaut Bruce McCandless spacewalk - Album alb3793051
Space Quotes / Souvenirs d'espace: Interview de Bruce McCandless, astronaute et premier homme à utiliser le MMU
STS 41-B This Day in Aviation
Bruce Mccandless First Free Flight Sts 41b Numbered Photograph
Spaceflight mission report: STS-41B
Bruce McCandless, astronaut who donned jetpack on first tetherless spacewalk, dies
40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA
Bruce McCandless, the first astronaut to go on an untethered space walk
Astro Info Service on X: OTD in 1980 NASA signed a $26 million contract with Martin Marietta for the development of a Manned Maneuvering Unit. This included 2 flight units, training devices
STS 41-B This Day in Aviation
