John Glenn was assigned to the NASA Space Task Group at Langley Research Center, Hampton, Virginia, in April 1959 after his selection as a Project Mercury Astronaut.
The Space Task Group was moved to Houston and became part of the NASA Manned Spacecraft Center (now Johnson Space Center) in 1962.
Glenn flew on Mercury-6 (February 20, 1962) and STS-95 (October 29 to November 7, 1998), and has logged over 218 hours in space.
NASA celebrates the 50th Anniversary of Project Mercury
NASA Televisions Art Director, Mark R. Hailey, created this promo