The Gemini spacesuit was Ed White's personal spacecraft when he left the Gemini IV capsule. Image Credit: NASA
Apollo 11 astronaut Buzz Aldrin stands on the surface of the moon on July 20, 1969. Apollo 11 Commander Neil Armstrong is seen reflected in Aldrin's helmet visor. Image Credit: NASA
Space shuttle astronaut Bruce McCandless became the first astronaut to maneuver about in space untethered. He wore a jetpack-like device called the Manned Maneuvering Unit, or MMU. Image Credit: NASA
Astronauts practice repairs to a Hubble Space Telescope model underwater at the Neutral Buoyancy Lab in Houston, Texas. Image Credit: NASA