40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA
By A Mystery Man Writer
Description
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. “Hoot”
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://www.nasa.gov/wp-content/uploads/2024/02/sts-41b-13-spas-01a-s84-29036-41b-32-1224.jpg)
40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://c8.alamy.com/comp/2K7XGPP/astronaut-bruce-mccandless-ii-sts-41-b-mission-specialist-participates-in-a-historical-spacewalk-he-is-pictured-a-few-meters-away-from-the-cabin-of-the-earth-orbiting-space-shuttle-challenger-this-spacewalk-represented-the-first-use-of-a-nitrogen-propelled-hand-controlled-device-called-the-manned-maneuvering-unit-mmu-which-allows-for-much-greater-mobility-than-that-afforded-previous-space-walkers-who-had-to-use-restrictive-tethers-bruce-mccandless-ii-demonstrates-the-manned-maneuvering-unit-mmu-floating-in-space-above-a-clouded-earth-2K7XGPP.jpg)
Historical space exploration hi-res stock photography and images - Alamy
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://www.nasa.gov/wp-content/uploads/2024/02/sts-41b-17-fd5-eva1-mccandless-s84-27031.jpg)
40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://www.americaspace.com/wp-content/uploads/2024/01/BRUCE.jpg)
Buck and Flash”: Remembering the First Flights of the Manned Maneuvering Unit (MMU), Forty Years On - AmericaSpace
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://images-assets.nasa.gov/image/as17-134-20476/as17-134-20476~large.jpg?w=1919&h=1878&fit=clip&crop=faces%2Cfocalpoint)
The Iconic Photos from STS-41B: Documenting the First Untethered Spacewalk - NASA
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](http://www.spacetoday.org/images/SpcShtls/Challenger/ChallengerInOrbit1983.jpg)
History Of Space Shuttles: Remembering the fleet of U.S. space planes - 1981-2011
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://www.spaceline.org/spacelineorg/wp-content/uploads/2020/10/a-picture-containing-plane-aircraft-airplane-tr.png?x85825)
SPACE SHUTTLE PROGRAM HISTORY
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://www.cnet.com/a/img/resize/543fda62f2af087782db40febdf11e83d1501655/hub/2018/10/10/64aa5535-142f-4988-a291-931cab655b58/marklee.jpg?auto=webp&width=1200)
11 breathtaking images of NASA astronauts floating in space - CNET
![40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA](https://www.nasa.gov/wp-content/uploads/2024/02/sts-41b-20-fd5-eva1-mccandless-s84-27037a.jpg)
40 Years Ago: STS-41B, the First Flight of the Manned Maneuvering Unit - NASA
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