Neil Alden Armstrong (born August 5, 1930) is a former American astronaut, test pilot, university professor, and United States Naval Aviator. He is the first person to set foot on the Moon. His first spaceflight was aboard Gemini 8 in 1966, for which he was the command pilot. On this mission, he performed the first manned docking of two spacecraft together with pilot David Scott. Armstrong's second and last spaceflight was as mission commander of the Apollo 11 moon landing mission on July 20, 1969. On this mission, Armstrong and Buzz Aldrin descended to the lunar surface and spent 2½ hours exploring while Michael Collins remained in orbit in the Command Module. Armstrong is a recipient of the Congressional Space Medal of Honor.
Before becoming an astronaut, Armstrong was in the United States Navy and saw action in the Korean War. After the war, he served as a test pilot at the National Advisory Committee for Aeronautics (NACA) High-Speed Flight Station, now known as the Dryden Flight Research Center, where he flew over 900 flights in a variety of aircraft. As a research pilot, Armstrong served as project pilot on the F-100 Super Sabre A and C aircraft, F-101 Voodoo, and the Lockheed F-104A Starfighter. He also flew the Bell X-1B, Bell X-5, North American X-15, F-105 Thunderchief, F-106 Delta Dart, B-47 Stratojet, KC-135 Stratotanker and Paresev. He graduated from Purdue University.
On April 5, 1967, the same day the Apollo 1 investigation released its report on the fire, Neil Armstrong assembled with 17 other astronauts for a meeting with Deke Slayton. The first thing Slayton said was, "The guys who are going to fly the first lunar missions are the guys in this room." According to Eugene Cernan, Neil Armstrong showed no reaction to the statement. To Armstrong it came as no surprise - the room was full of veterans of Project Gemini, the only people who could fly the lunar missions. Slayton talked about the planned missions and named Armstrong to the backup crew for Apollo 9, which at that stage was planned to be a high-Earth orbit test of the Lunar Module-Command/Service Module combination. After design and manufacturing delays in the Lunar Module (LM), Apollo 9 and Apollo 8 swapped crews. Based on the normal crew rotation scheme, Armstrong would command Apollo 11.
To give the astronauts experience with the way the LM flew, Bell Aircraft built two Lunar Landing Research Vehicles, which were later converted to Lunar Landing Training Vehicles (LLTV). Nicknamed the 'Flying Bedsteads', they simulated the one-sixth g of the Moon by using a turbofan engine to cancel out most of the craft's weight. On May 6, 1968, about 100 feet (30 m) above the ground, Armstrong's controls started to degrade and the LLTV began banking. He ejected safely (later analysis would suggest if he had ejected 0.5 seconds later, his parachute would not have opened in time). His only injury was from biting his tongue. Even though he was nearly killed on one, Neil Armstrong maintains that without the LLRV and LLTV, the lunar landings would not have been successful as they gave commanders valuable experience in the behavior of lunar landing craft.