Close-up, well lit views of the tissue culture bags used in the Bioreactor Demonstration System (BDS)-04 experiment, with bubbles evident in the sample (010-3). Various views of STS-90 mission specialist Kathryn Hire working with the BDS-04 experiment in the Columbia's middeck. She is shown removing the specimens from the Biotechnology Specimen Temperature Controller (BSTC) (014-9), using a PCBA analyzer to check her results (020-1) and injecting the specimens and bagging them up for return(022-7).