Jack Dailey, director of the Smithsonian's National Air and Space Museum, speaks during a press briefing at the new "Moving Beyond Earth," a new exhibition at the museum in Washingon, Wednesday, Nov. 18, 2009. Moving Beyond Earth is an immersive exhibition that places visitors “in orbit” in the shuttle and space-station era to explore recent human spaceflight and future possibilities. Photo Credit: (NASA/Paul E. Alers)