Bachelor of science in aeronautical engineering from Purdue University, 1977; master of science degree in mechanical engineering from the University of Toledo,1981; Ph.D. in dynamics and control with a minor in propulsion at Purdue University 1992 & 1993; at the time of selection employed by NASA Johnson Space Center; semi finalist in NASA group 10 selection; later NASA Manager, International Space Station Program; currently associate administrator for Space Operations at NASA Headquarters in Washington.