Dr. John Holdren, assistant to the President for Science and Technology, Director of the White House Office of Science and Technology Policy, and Co-Chair of the President's Council of Advisors on Science and Technology (PCAST), listens as an unidentified student describes his project during the GRAIL MoonKAM student expo, Friday, June 1, 2012, in Washington. GRAIL MoonKAM (Moon Knowledge Acquired by Middle school students) is GRAIL's signature education and public outreach program. It is led by Dr. Sally Ride, America's first woman in space, and her team at Sally Ride Science in collaboration with undergraduate students at the University of California, San Diego. Photo Credit: (NASA/Paul E. Alers)
