(05/23/2002) -- The SHI Research Double Module (SHI/RDM) (right) and Hitchhiker Carrier (left) are lowered toward Columbia's payload bay. The two payloads will be installed in the payload bay for mission STS-107, a research mission. SHI/RDM is the primary payload, with experiments ranging from material sciences to life sciences (many rats). Also, the Fast Reaction Experiments Enabling Science, Technology, Applications and Research (FREESTAR) that is on the Hitchhiker Carrier incorporates eight high priority secondary attached shuttle experiments. STS-107 is scheduled to launch July 19, 2002