NAME: Donald A. Thomas (Ph.D.) NASA Astronaut BIRTHPLACE AND DATE: Born May 6, 1955 in Cleveland, Ohio. His mother, Mrs. Irene M. Thomas, resides at the American Embassy, New Delhi, India. PHYSICAL DESCRIPTION: Brown hair; brown eyes; 5 feet 10 inches; 150 pounds. EDUCATION: Graduated from Cleveland Heights High School, Cleveland Heights, Ohio, in 1973; received a bachelor of science degree in Physics from Case Western Reserve University in 1977, and a master of science degree and a doctorate in Materials Science from Cornell University in 1980 and 1982, respectively. His dissertation involved evaluating the effect of crystalline defects and sample purity on the superconducting properties of niobium. MARITAL STATUS: Single. RECREATIONAL INTERESTS: Swimming, biking, camping, flying. ORGANIZATIONS: Member, American Institute of Aeronautics and Astronautics (AIAA), and Tau Beta Pi. SPECIAL HONORS: Graduated with Honors from Case Western Reserve University in 1977. Recipient of NASA Sustained Superior Performance Award, 1989. EXPERIENCE: Following graduation from Cornell University in 1982, Dr. Thomas joined AT&T Bell Laboratories in Princeton, New Jersey, working as a Senior Member of the Technical Staff. His responsibilities there included the development of advanced materials and processes for high density interconnections of semiconductor devices. He was also an adjunct professor in the Physics Department at Trenton State College in New Jersey. He holds two patents and has authored several technical papers. He left AT&T in 1987 to work for Lockheed Engineering and Sciences Company in Houston, Texas, where his responsibilities involved reviewing materials used in Space Shuttle payloads. In 1988 he joined NASA's Lyndon B. Johnson Space Center as a Materials Engineer. His work involved lifetime projections of advanced composite materials for use on Space Station Freedom. He was also a Principal Investigator for the Microgravity Disturbances Experiment, a middeck crystal growth experiment which flew on STS-32 in January 1990. This experiment investigated the effects of Orbiter and crew-induced disturbances on the growth of crystals in space. He is a private pilot with over 250 hours in single engine land aircraft and gliders, and over 175 hours flying as mission specialist in NASA T-38 jet aircraft. Selected by NASA in January 1990, Dr. Thomas became an astronaut in July 1991. He is qualified for assignment as a mission specialist on future Space Shuttle flight crews, and is currently assigned to the Safety and Operations Development Branches of the Astronaut Office, working on issues relating to Shuttle Orbiter systems. AUGUST 1991