Witnesses:
Dr. S. Allen Stern
Associate Administrator, NASA Science Mission Directorate
Dr. Lennard A. Fisk?
Chair, Space Studies Board, National Research Council
Dr. Berrien Moore III
Executive Director, Climate Central; Chair, Committee on Earth Studies, National Research Council
Dr. Steven W. Squyres
Professor of Astronomy, Cornell University
Dr. Jack O. Burns
Professor, Center for Astrophysics and Space Astronomy, University of Colorado
NASA's Science Programs: Fiscal Year 2009 Budget Request and Issues