Scott Carpenter was the fourth American astronaut in space, and one of the last two surviving astronauts of America's original space program, Project Mercury. He admitted he'd volunteered for it because "Pioneering in space was something I would willingly give my life for." It was actually feared he had died after his Mercury mission in 1962, when he landed 250 nautical miles from his target! Scott Carpenter died recently at the age of 88. You can hear his conversation with Leonard from 2003, about his uncommon journey into space.