The Inside Story of the First Untethered Spacewalk. On February 7, 1984, astronaut Bruce McCandless ventured out into space and away from shuttle Challenger using only a nitrogen-propelled, hand-controlled backpack.
The Inside Story of the First Untethered Spacewalk. On February 7, 1984, astronaut Bruce McCandless ventured out into space and away from shuttle Challenger using only a nitrogen-propelled, hand-controlled backpack.