Dr. Jay Buckey, who was on the UT Southwestern faculty from 1986 to 1995, flew as a payload specialist on the space shuttle Columbia for the National Aeronautical Space Administration (NASA) mission STS-90/Neurolab in April 1998. There he conducted experiments in Spacelab, the shuttle's scientific laboratory, dedicated on this flight to the study of the nervous system in space. At UT Southwestern, Dr. Buckey was a research associate in UT Southwestern's Space Medicine Laboratory, headed by Dr. C. Gunnar Blomqvist (sometimes spelled "Blomquist"). On the flight with Buckey was another NASA payload specialist with UT Southwestern connections: James A. ("Jim") Pawelczyk, Ph.D., who was at UT Southwestern from 1989 to 1992 on a post-doctoral fellowship in cardiovascular neurophysiology. Dr. Pawelczyk was a research fellow with Dr. Benjamin Levine.