Neil Armstrong's "one small step" signified a completely new achievement for humankind. Learn about the mission that put the first man on the moon. See more »

Aldrin, Edwin E., Jr. (1930-), a United States astronaut. He was the second human being, after Neil Armstrong, to set foot on the moon. See more »

Armstrong, Neil A. (1930-), a United States astronaut. As commander of the spaceship Apollo 11, he was the first human being to set foot on the moon. See more »

Bluford, Guion Stewart, Jr. (1942-), a United States astronaut. Bluford became the first black American in space while serving as a crew member on the shuttle Challenger during its flight in August, 1983. See more »

Collins, Michael (1930- ), a United States astronaut. He was a member of the Apollo 11 crew, which effected the first moon landing. See more »

Glenn, John H. (Herschel), Jr. (1921-), a United States astronaut and politician. See more »

Ride, Sally K. (Kristen) (1951-), a United States astrophysicist and astronaut. She was the first American woman to fly in space, being a crew member on the space shuttle Challenger flight of June, 1983. See more »

Shepard, Alan B. (Bartlett), Jr. (19231998), a United States astronaut. On May 5, 1961, he became the first American in space, riding in the Freedom 7 capsule to an altitude of 115 miles (185 km). See more »