Astronauts Gregory Jarvis, left, and L. William Butterworth take a breather from training activities in Johnson Space Center's (JSC) shuttle mock-up and integration laboratory. Jarvis and Butterworth, both Hughes Co. payload specialists, were originally assigned as payload specialists to STS-51D but were reassigned to STS-51L.
Information
Taken in
Johnson Space Center
Author
NASA
Description
Astronauts Gregory Jarvis, left, and L. William Butterworth take a breather from training activities in Johnson Space Center's (JSC) shuttle mock-up and integration laboratory. Jarvis and Butterworth, both Hughes Co. payload specialists, were originally assigned as payload specialists to STS-51D but were reassigned to STS-51L.