- Mercury: the first U.S. program for human spaceflight
- Gemini: the first two-man crews, longer missions
- Apollo: the first spaceflights to the moon
- Skylab: a place where humans lived and worked in space for extended periods of time
- Apollo-Soyuz: first international manned spaceflight
- Space shuttle: the first reusable spacecrafts
- International Space Station: an effort to create a permanent orbiting laboratory in space
Aeronautics-Science dealing with the operation of aircraft.
Astronaut-A person who pilots a spacecraft or works in space; a space traveler, particularly one from the United States. For example, Alan B Shepard Jr was the commander of a number of NASA space missions.
Johnson Space Center- The headquarters for all U.S. manned spacecraft projects conducted by NASA; the location of the Mission Control Center for manned space flights.
Kennedy Space Center-The launch facility for all U.S. space missions that carry crews.
launch vehicle-A powerful rocket used to launch a spacecraft or satellite into space.
NASA (National Aeronautics & Space Administration)-The government agency whose mission is to research and develop safe and meaningful ways to explore space.
orbit-The path of a spacecraft or a heavenly body as it revolves around a planet or other body.
space shuttle-A reusable space vehicle that takes off like a rocket and lands like an airplane.
space station-An orbiting spacecraft designed to be occupied by teams of astronauts or cosmonauts over a long period.