STS-51B Mission Patch
Item #: MP51B
17th Space Shuttle Mission 7th Flight of Challenger Crew: Robert F. Overmyer, Commander Frederick D. Gregory, Pilot Don L. Lind, Mission Specialist Norman E. Thagard, Mission Specialist William E. Thornton, Mission Specialist Lodewijk van den Berg, Payload Specialist Taylor G. Wang, Payload Specialist The mission's primary payload was Spacelab-3. This was the first operational flight for the Spacelab orbital laboratory series developed by the European Space Agency (ESA). Studies were held in materials sciences, life sciences, fluid mechanics, atmospheric physics and astronomy.