Astronaut Bruce McCandless II floats untethered away from the safety of the space shuttle

Astronaut Bruce McCandless II floats untethered away from the safety of the space shuttle, with nothing but his Manned Maneuvering Unit keeping him alive. The first person in history to do so.

His description of the experience:

I was grossly over-trained. I was just anxious to get out there and fly. I felt very comfortable … It got so cold my teeth were chattering and I was shivering, but that was a very minor thing. … I’d been told of the quiet vacuum you experience in space, but with three radio links saying, ‘How’s your oxygen holding out?’, ‘Stay away from the engines!’ and ‘When’s my turn?’, it wasn’t that peaceful … It was a wonderful feeling, a mix of personal elation and professional pride: it had taken many years to get to that point.