NASA Administrator Michael Griffin outlines the President's budget for fiscal year 2007 during a news conference, Monday, Feb. 6, 2006, at NASA Headquarters in Washington. Griffin was joined by the heads of NASA's four mission directorates to explain how the proposed $16.8 billion dollar budget supports the Vision for Space Exploration. Seated left to right: Scott Horowitz, NASA Associate Administrator for Exploration Systems, William Gerstenmaier, NASA Associate Administrator for Space Operations, Lisa Porter, NASA Associate Administrator for Aeronautics Research and Mary Cleave, NASA Associate Administrator for Science. Photo Credit: (NASA/Bill Ingalls)