KENNEDY SPACE CENTER, FLA. - At a post-landing briefing, NASA Administrator Mike Griffin, Space Shuttle Program Manager Bill Parsons, Shuttle Launch Director Mike Leinbach and Associate Administrator of NASA’s Space Operations Mission Directorate Bill Readdy respond to questions from the media. Space Shuttle Discovery safely landed at Edwards Air Force Base in California at 8:11 a.m. EDT, guided by Mission Commander Eileen Collins. Discovery spent two weeks in space on Return to Flight mission STS-114, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks.