Nelson was part of three shuttle missions during his astronautic career. During those, he clocked up 411 hours in space, including ten hours of extravehicular activity. His missions involved the deployment of satellites, testing equipment and science experiments, and he was subsequently inducted into the U.S. Astronaut Hall of Fame in 2009.
A second suit appeared to have belonged to astronaut Robert Parker, a physicist and astronomer. Parker was a program scientist for Skylab – NASA’s inaugural orbital space station. He also served as mission specialist for the 1983 Spacelab-1 outing and 1990’s STS-35, both Space Shuttle Columbia flights.