Bachelor of Science in Chemistry in 1977; worked for Amoco Chemicals Corp. for a total of nearly one year during the summers of his college years; Ph.D. in Organic Chemistry from the University of Illinois in 1981; joined E. I. DuPont, Inc. as a Research Chemist at the Experimental Station in Wilmington, Delaware; after more than three years he moved to a manufacturing site in La Porte, Texas with DuPont's Agricultural Chemicals Department; in the summer 1989 he joined the NASA; involved in the 90-day study on the Space Exploration Initiative commissioned by President Bush on the 20th anniversary of the Apollo 11 landing; was involved in several studies concerning Lunar and Mars Exploration and Space Resources Utilization, both in technology development efforts as well as mission studies; Mission Scientist for the Space Shuttle missions to the MIR Space Station and for the first long-term stay of an astronaut on that Station; supported the Payload Planning and Resources Office of the International Space Station Program Office; became the Increment Scientist for the Human Life Sciences Research Program on ISS; at the time of selection employed by NASA Johnson Space Center; semi finalist in NASA group 14, 15 and 17 selections; currently Exploration Program Scientist for the Space and Life Sciences Directorate, coordinating the flow of data and issues concerning humans in space for the exploration of Mars and other destinations.