Space Shuttle Mission STS-41B (Challenger)

The STS-41B mission launched on February 3, 1984. During this mission the first untethered space walks were carried out by McCandless and Stewart, using the manned maneuvering unit.

Crew:

Vance D. Brand (Commander)
Robert L. Gibson (Pilot)
Bruce McCandelss II (Mission Specialist)
Ronald E. McNair (Mission Specialist)
Robert L. Stewart (Mission Specialist)