Lyndon B. Johnson Space Center
Houston, Texas 77058
He is a private pilot with over 250 hours in single engine land aircraft and gliders, and over 600 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 has worked in the Safety and Operations Development Branches of the Astronaut Office working on issues relating to Shuttle Orbiter systems, and was also a spacecraft communicator (CAPCOM) for Shuttle missions STS-47, 52 and 53. A veteran of four space flights, he has logged 1,040 hours and 12 minutes in space. He was a mission specialist on STS-65 (July 8-23, 1994), STS-70 (July 13-22, 1995), STS-83 (April 4-8, 1997) and STS-94 (July 1-17, 1997).
STS-65 set a new flight duration record for the Space Shuttle program. The mission flew the second International Microgravity Laboratory (IML-2). During the 15-day flight the crew conducted more than 80 experiments focusing on materials and life sciences research in microgravity. The mission was accomplished in 236 orbits of the Earth, traveling 6.1 million miles in 353 hours and 55 minutes.
On STS-70, Dr. Thomas was responsible for the deployment of the sixth and final Tracking and Data Relay Satellite from the Space Shuttle. Mission duration was 214 hours and 20 minutes, traveling 3.7 million miles in 142 orbits of the Earth.
STS-83, the Microgravity Science Laboratory (MSL-1) Spacelab mission, was cut short because of problems with one of the Shuttle's three fuel cell power generation units. Mission duration was 95 hours and 12 minutes, traveling 1.5 million miles in 63 orbits of the Earth.
STS-94 was a re-flight of the Microgravity Science Laboratory (MSL-1) Spacelab mission, and focused on materials and combustion science research in microgravity. Mission duration was 376 hours and 45 minutes, traveling 6.3 million miles in 251 orbits of the Earth.