On April 9, 1959, NASA’s first administrator, Dr. Keith Glennan, announced the names of the agency’s first group of astronauts at a news conference in Washington, D.C. Now known as the “Original Seven,” they included three Naval aviators, M. Scott Carpenter, Walter M. Schirra Jr., and Alan B. Shepard Jr.; three Air Force pilots, L. Gordon Cooper Jr., Virgil I. (Gus) Grissom, and Donald K. (Deke) Slayton; along with Marine Corps aviator John H. Glenn Jr. This group photo of the original Mercury astronauts was taken in June 1963 at the Manned Spacecraft Center (MSC), now Johnson Space Center, in Houston, Texas. The astronauts are, left-to-right: Cooper, Schirra, Shepard, Grissom, Glenn, Slayton and Carpenter.

Mercury represented NASA’s first human spaceflight program, with the aim to see if humans could function effectively in space for a few minutes or hours at a time.

Members of the group flew on all classes…