S. Alan Stern
S. ALAN STERN is a planetary scientist and the principal investigator of NASA's New Horizons mission to Pluto and the Kuiper Belt. He has participated in and led numerous space experiments and flies aboard NASA F-18s and other high-performance aircraft to conduct high-altitude airborne astronomical research. Stern received his Ph.D. in planetary science and astrophysics from the University of Colorado in 1989. He is director of the Southwest Research Institute's department of space studies in Boulder, Colo.