In the Operations and Checkout Building at NASA's Kennedy Space Center in Florida, President Barack Obama greets U.S. Sen. Bill Nelson before addressing the participants of the Conference on the American Space Program for the 21st Century as NASA Administrator Charles Bolden looks on, at right. In his remarks, President Obama outlined the new course his administration is charting for NASA and the future of U.S. leadership in human spaceflight. ''Leading the world to space helped America achieve new heights of prosperity here on Earth, while demonstrating the power of a free and open society to harness the ingenuity of its people,'' the President said during his visit. Image Credit: NASA/Jim Grossmann