Rusty Schweickart

Russell Louis "Rusty" Schweickart (born October 25, 1935) was a former American astronaut. Schweickart was selected in 1963 for NASA's third astronaut group. He was the Lunar Module Pilot on the 1969 Apollo 9 mission, the first crewed flight test of the lunar module, on which he performed the first in-space test of the portable life support system used by the Apollo astronauts who walked on the Moon.