US astronaut and manager of the Space Shuttle Management Integration and Planning Office at the Johnson Space Center. Prior to this, he was director of Safety, Reliability, and Quality Assurance there. He has commanded three of his four space shuttle flights, including the Endeavour mission of January 1993 to deploy the Tracking and Data-Relay Satellite. He logged over 825 hours in space. Casper was selected as an astronaut in 1984.
Subjects: Astronomy and Astrophysics.