Brock was a NASA-JPL NRC fellow studying atmospheric photochemistry. Dr. Brock has served as member of the Air Force Scientific Advisory Board and chaired the board’s study on the Operational Utility of Small Satellites. He also has served on the Defense Science Board Advisory Group on Electron Devices, the Air Force Tactical Applications Center Space Advisory Group, and the advisory boards of numerous university optoelectronic Centers of Excellence. He is an associate fellow of the American Institute of Aeronautics and Astronautics (AIAA), received the Air Force Exemplary Civilian Service Medal in 2008, and was a TRW/NGC senior technical fellow from 1995 until his retirement. Dr. Brock earned a B.S. in chemistry from the University of Washington and his Ph.D. in chemical physics from the University of California, Berkeley.

ROBERT L. CRIPPEN is retired from Thiokol Propulsion Group, Brigham City, Utah, where he served as president. He is also a retired captain of the U.S. Navy. He joined NASA as an astronaut in 1969 and went on to serve as a member of the astronaut support crew for three Skylab missions, as well as the Apollo-Soyuz Test Project mission, which was completed in 1975. He served as pilot on STS-1 (1981), and was the spacecraft commander on STS-7 (1983), STS-41C (1984) and STS-41G (1984). From 1986-1989, he was deputy director for shuttle operations at Kennedy Space Center (KSC), where he was responsible for final shuttle preparation and mission execution. He also served as director for the space shuttle at NASA Headquarters from 1990 until he was named KSC director in 1992. In his headquarters post, Captain Crippen presided over the overall shuttle program requirements and performance, and total program control. As KSC Center director, he managed the processing, launch, and recovery of space shuttle missions. He next served as vice president of Training Simulation Systems at Lockheed Martin Information Systems. In 1996, Captain Crippen was named president of the Thiokol Propulsion Group. He retired in 2001. He received his B.S. in aerospace engineering University of Texas, Austin. He is a member of the National Academy of Engineering and previously served on the Aeronautics and Space Engineering Board.

JOSEPH S. HEZIR is the co-founder and managing partner of the EOP Group, Inc., a consulting firm that specializes in federal government regulatory strategy development and budget policy. He previously served 18 years in the White House Office of Management and Budget in positions of increasing responsibility, serving for 6 years as deputy associate director for energy and science. He has also served on a number of advisory bodies, including the NASA Advisory Council and the Metropolitan Area Board of Directors for the Red Cross. From Carnegie Mellon University, Mr. Hezir earned a B.S. in chemical engineering and an M.S. from the Heinz School of Public Policy. He has served on numerous NRC committees, including the Committee on EPP2010: Elementary Particle Physics in the 21st Century, the Committee on Burning Plasma Assessment and the Committee on Cost of and Payment for Animal Research; he is currently a member on the Board on Physics and Astronomy.

ANN R. KARAGOZIAN is a professor in the Department of Mechanical and Aerospace Engineering at the UCLA. Her research interests are in fluid mechanics, propulsion, and combustion, with applications to high-efficiency energy generation and aerospace propulsion systems. Dr. Karagozian served as the vice chair of the Air Force Scientific Advisory Board (SAB), and twice received the Air Force Decoration for Exceptional Civilian Service. She chaired a wide-ranging study for the SAB on the Future of Launch Vehicles for the U.S. Air Force and previously chaired studies for the SAB on Air Vehicle Fuel Efficiency and Persistence at Near Space Altitudes. She also served on the NASA Aeronautics Advisory Committee. Dr. Karagozian is the immediate past chair of the American Physical Society (APS) Division of Fluid Dynamics and also is immediate past chair of the UCLA Academic Senate, representing 3,500 UCLA faculty. She is a fellow of both AIAA and APS. She received her B.S. in engineering, summa cum laude, from UCLA and her M.S. and Ph.D. degrees in mechanical engineering from the California Institute of Technology. Dr. Karagozian is currently a member-at-large of the NRC U.S. National Committee on Theoretical and Applied Mechanics and has previously served as a member of the Committee to Identify Potential Breakthrough Technologies and Assess Long-Term R&D Goals in

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