Astronaut Bruce McCandless II, mission specialist, participates in a spacewalk a few meters away from the cabin of the space shuttle Challenger on Feb. 7, 1984. He is using a nitrogen-propelled hand-controlled manned maneuvering unit (MMU).
Astronaut Bruce McCandless II, mission specialist, participates in a spacewalk a few meters away from the cabin of the space shuttle Challenger on Feb. 7, 1984. He is using a nitrogen-propelled hand-controlled manned maneuvering unit (MMU). He is performing this spacewalk without being tethered to the shuttle. Below him can be seen a cloudy view of the earth as McCandless approaches his maximum distance from the Challenger.
Image Credit: NASA