Selected as a pilot by NASA in March 1992, “Doc” is veteran of four space flights and has logged over 1,138 hours in space. He served as pilot on STS-75 (1996), STS 82 (1997) and STS-101 (2000), and was the commander on STS-105 (2001). Scott Horowitz retired from NASA in October 2004 to serve as Director of Space Transportation and Exploration at A.T.K.-Thiokol in Utah. In September 2005 he returned to NASA as Associate Administrator for the Exploration Systems Mission Directorate, NASA Headquarters, Washington, D.C. until October of 2007. He served as an USAF test pilot, F-15 fighter pilot, T-38 instructor pilot and retired from the USAF as a Colonel in 2004. Scott has logged over 6,500 hours of flight time in more than 50 different aircraft. He also taught graduate level engineering courses for California State University at Fresno and Embry Riddle University. He was also an Associate Scientist for the Lockheed Georgia Company. Scott received a BS in Engineering from California State University at Northridge, and MS and PhD degrees in Aerospace Engineering from the Georgia Institute of Technology. Scott has designed and built experimental aircraft, modified sports cars, and is the inventor of the Ares I launch vehicle (http://www.nasa.gov/mission_pages/constellation/ares/aresI.html) that will send our future astronauts to space an order of magnitude safer than today’s Space Shuttle. His space flight experience includesSTS-75 Columbia STS-82 Discovery, STS-101 Atlantis, and STS-105 Discovery.