Looking Back: The Mercury 7 - On this day in 1959, we introduced our first astronaut class, the Mercury 7. Front row, left to right: Walter M. Schirra, Jr., Donald K. "Deke" Slayton, John H. Glenn, Jr., and M. Scott Carpenter; back row, Alan B. Shepard, Jr., Virgil I. "Gus" Grissom, and L. Gordon Cooper, Jr. Image Credit: NASA #onthisday #history #nasa #mercury7 #astronauts
