While at NASA from January 1993 to June 1995, Dr. Harris was responsible for strategy, planning, advocacy and direction of NASA's aeronautics research programs and for institutional management of NASA's Langley, Lewis and Ames Research Centers and Dryden Flight Research Center. From July 1990 until December 1992, he was Vice President of the University of Tennessee Space Institute. From July 1985 to June 1990, Dr Harris was Dean of the School of Engineering at the University of Connecticut, Storrs. He was Professor of Aeronautics and Astronautics at Massachusetts Institute of Technology (MIT) from August 1972 to June 1985. Following leadership service at NASA, Dr. Harris returned to MIT in July 1995 as Professor of Aeronautics and Astronautics. He has served in his current position as Head of the Department of Aeronautics and Astronautics, MIT, since June 2003. He has served on advisory groups of the National Research Council, the Army Science Board, the National Science Foundation, and the Princeton University Board of Trustees. Dr. Harris was elected to the National Academy of Engineering (NAE) in 1995. He has published technical papers on aeroacoustics, unsteady external transonic flows, theory of shock waves in gas mixtures, and hemodynamics. Dr. Harris is the recipient of several honorary doctoral degrees.