wake of earlier serious mission failures. Hubbard founded NASA's Astrobiology Institute in 1998; conceived the Mars Pathfinder mission with its airbag landing system and was the manager for their highly successful Lunar Prospector Mission. Prior to joining NASA, Hubbard led a small start-up high technology company in the San Francisco Bay Area and was a staff scientist at the Lawrence Berkeley National Laboratory. Hubbard has received many honors including NASA's highest award, their Distinguished Service Medal, and the American Institute of Aeronautics and Astronautics's Von Karman Medal. Hubbard was elected to the International Academy of Astronautics, is a Fellow of the American Institute of Aeronautics and Astronautics, has authored more than 50 scientific papers on research and technology and also holds the Carl Sagan Chair at the SETI Institute. His education includes an undergraduate degree in physics and astronomy at Vanderbilt University and a graduate degree in solid state and semiconductor physics at the University of California at Berkeley. Marc Buie, Sentinel Mission Scientist Dr. Marc W. Buie (b. 1958) is the foundation's Sentinel Mission Scientist, and as well a U.S. astronomer at Lowell Observatory in Flagstaff, Arizona. Buie received his B.Sc. in physics from Louisiana State University in 1980 and earned his Ph.D. in Planetary Science from the University of Arizona in 1984. He was a post-doctoral fellow at the University of Hawaii from 1985 to 1988. From 1988 to 1991, he worked at the Space Telescope Science Institute where he assisted in the planning of the first planetary observations made by the Hubble Space Telescope. Since 1983, Pluto and its moons have been a central theme of the research done by Buie, who has published over 85 scientific papers and journal articles. He is also one of the co-discoverers of Pluto's new moons, Nix and Hydra (Pluto II and Pluto III) discovered in 2005. Buie has worked with the Deep Ecliptic Survey team who have been responsible for the discovery of over a thousand such distant objects. He also studies the Kuiper Belt and transitional objects such as 2060 Chiron and 5145 Pholus, as well as the occasional comets as with the recent Deep impact mission that travelled to Comet Tempel 1, and near-Earth asteroids with the occasional use of the Hubble and Spitzer Space Telescopes. Buie also assists in the development of advanced astronomical instrumentation. Asteroid 7553 Buie is named in honor of the astronomer, who has