David Morrison is the Senior Scientist at the NASA Astrobiology Institute, where he participates in a variety of research programs in astrobiology -- the study of the living universe. From 1996-2001 he was the Director of Space at NASA Ames Research Center, managing basic and applied research programs in the space, life, and Earth sciences. Dr. Morrison received his Ph.D. in astronomy from Harvard University, and until he joined NASA he was Professor of Astronomy at the University of Hawaii. Internationally known for his research on small bodies in the solar system, Dr. Morrison is the author