"ASTRONAUT"

Astronaut Bruce McCandless, II, mission specialist, uses his hands to control his movement in space while using the nitrogen propelled manned maneuvering unit (MMU). He is participating in a extravehicular activity (EVA), a few meters away from the cabin of the shuttle Challenger. McCandless is centered in a background of clouds and earth in this view of his EVA. He is floating without tethers attaching him to the shuttle.Date Taken: February 23, 1984 Credits: JSC NASA