STS-81 mission specialist Jeff Wisoff (grey shirt) and John Grunsfeld (green shirt) work with Passive Thermal Control Units (PTCU) to be used in the Biorack experiment.
Information
Taken in
Space
Author
NASA
Description
STS-81 mission specialist Jeff Wisoff (grey shirt) and John Grunsfeld (green shirt) work with Passive Thermal Control Units (PTCU) to be used in the Biorack experiment.