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News Item Smithsonian's National Air and Space Museum to Host Distinguished Guests in Conversation with Sir Arthur C. Clarke May 11, 2001 | 12:00am News Item Smithsonian Awards Contract to Build National Air and Space Museum's Udvar-Hazy Center April 10, 2001 | 12:00am News Item Smithsonian's National Air and Space Museum Announces "Explore the Universe" Exhibition March 14, 2001 | 12:00am News Item Chandra X-ray Observatory Team and Scott Crossfield Are Smithsonian's National Air and Space Museum Trophy 2000 Winners November 13, 2000 | 12:00am News Item Smithsonian Breaks Ground for National Air and Space Museum's Companion Facility at Dulles October 25, 2000 | 12:00am News Item National Air and Space Museum Celebrates Space Day May 02, 2000 | 12:00am News Item Media Advisory May 02, 2000 | 12:00am News Item Media Advisory May 01, 2000 | 12:00am News Item New Smithsonian Museum Facility to be Named After Donor March 28, 2000 | 12:00am News Item Smithsonian Celebrates Early Aviation With Poster Exhibition At National Air and Space Museum April 17, 2000 | 12:00am