CAPE CANAVERAL, Fla. - In the Operations and Checkout Building at NASA's Kennedy Space Center in Florida, NASA Administrator Charles Bolden, at the podium, introduces President Barack Obama to the participants of the Conference on the American Space Program for the 21st Century. Behind him is U. S. Sen. Bill Nelson. President Obama opened the conference with remarks on the new course his administration is charting for NASA and the future of U.S. leadership in human spaceflight. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. - In the Operations and Checkout Building at NASA's Kennedy Space Center in Florida, NASA Administrator Charles Bolden, at the podium, introduces President Barack Obama to the participants of the Conference on the American Space Program for the 21st Century. Behind him is U. S. Sen. Bill Nelson. President Obama opened the conference with remarks on the new course his administration is charting for NASA and the future of U.S. leadership in human spaceflight. Photo credit: NASA_Jim Grossmann

Presidential Visits to Kennedy Space Center: All the U. S. presidents shown here were in office at the time they visited KSC. President Dwight D. Eisenhower, 02/10/1960 President Lyndon B. Johnson visited twice, 09/14/1964 and 09/27/1966 President Richard M. Nixon viewed the Apollo 12 launch on 11/14/1969 President Jimmy Carter came to KSC on 10/01/1978 President William J. Clinton viewed the STS-95 launch on 10/29/1998 and President Barack H. Obama visited KSC twice, 04/15/2010 and 04/29/2011. Poster designed by Kennedy Space Center Graphics Department/Greg Lee. Credit: NASA

CAPE CANAVERAL, Fla. - In the Operations and Checkout Building at NASA's Kennedy Space Center in Florida, U. S. Sen. Bill Nelson, at the podium, introduces NASA Administrator Charles Bolden to the participants of the Conference on the American Space Program for the 21st Century. President Barack Obama is at Kennedy to address the participants of the conference on the new course his administration is charting for NASA and the future of U.S. leadership in human spaceflight. Photo credit: NASA_Jim Grossmann

VANDENBERG AIR FORCE BASE, Calif. -- Media attend a mission science briefing at Vandenberg Air Force Base in California in preparation for the launch of the Landsat Data Continuity Mission LDCM. From left are Rani Gran of NASA Public Affairs, LDCM project scientist Dr. Jim Irons from NASA's Goddard Space Flight Center, senior scientist and co-chair of the Landsat Science Team U.S. Geological Survey Earth Resources Observation and Science EROS Center Dr. Thomas Loveland, Landsat scientist and president of Kass Green and Associates Kass Green, and senior research scientist Dr. Mike Wulder of the Landsat Science Team Canadian Forest Service, Natural Resources Canada. Launch of LDCM aboard a United Launch Alliance Atlas V rocket from Vandenberg's Space Launch Complex-3E is planned for Feb. 11 during a 48-minute launch window that opens at 10:02 a.m. PST, or 1:02 p.m. EST. LDCM is the eighth satellite in the Landsat Program series of Earth-observing missions and will continue the program’s critical role in monitoring, understanding and managing the resources needed for human sustainment, such as food, water and forests. NASA's Goddard Space Flight Center in Greenbelt, Md., is responsible for LDCM project management. Orbital Sciences Corp. built the LDCM satellite. NASA's Launch Services Program at the Kennedy Space Center in Florida provides launch management. After launch and the initial checkout phase, the U. S. Geological Survey will take operational control of LDCM, and it will be renamed Landsat 8. Photo credit: NASA/Kim Shiflett