A commander (captain-select) in the U.S. Navy and a naval flight surgeon, was Mission Specialist 4 on STS-107. Clark received a bachelor of science in zoology from the University of Wisconsin-Madison in 1983 and a doctorate in medicine from the same school in 1987. Clark, as a member of the Red Team, worked with the following experiments: European Space Agency (ESA) Advanced Respiratory Monitoring System (ARMS); Astroculture (AST-1 and 2); Biotechnology Demonstration System (BDS); ESA Biopack (eight experiments); Application of Physical & Biological Techniques to Study the Gravisensing and Response System of Plants: Magnetic Field Apparatus (Biotube-MFA); Closed Equilibrated Biological Aquatic System (CEBAS); Commercial ITA Biological Experiments (CIBX); the Microbial Physiology Flight Experiments Team (MPFE) experiments, which included the Effects of Microgravity on Microbial Physiology and Spaceflight Effects on Fungal Growth, Metabolism and Sensitivity to Antifungal Drugs; Osteoporosis Experiment in Orbit (OSTEO); the Physiology and Biochemistry Team (PhAB4) suite of experiments, which included Calcium Kinetics, Latent Virus Shedding, Protein Turnover and Renal Stone Risk; Sleep-Wake Actigraphy and Light Exposure During Spaceflight (SLEEP); and the Vapor Compression Distillation Flight Experiment (VCD FE).
Selected by NASA in April 1996, Clark was making her first spaceflight.
The information above was collected from www.nasa.gov