Astronaut Alan B. Shepard Jr. is being helped into the lower half of his pressure suit for the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight.
Astronaut Alan B. Shepard Jr. is being helped into the lower half of his pressure suit for the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight. Photo credit: NASA