Sean O'Keefe

Bucharest (Romania)NASA
NASA Administrator Sean O'Keefe, far left, applauds the new class of astronaut teachers, Thursday, May 6, 2004, at Space Day presented at the National Air and Space Museum-Steven F. Udvar-Hazy Center in Chantilly, Va. The Space Day celebration was to introduce a new class of astronauts,... LINDA SPILLERS, ASSOCIATED PRESS