This Smithsonian website promotes the building of the Steven F. Udvar-Hazy center "for the display and preservation of its collection of historic aviation and space artifacts." Visitors will find images, diagrams, and descriptions of many of the over 200 aircraft and 135 spacecraft that will be on display at the center such as the Boeing B-17D Swoose, Spacelab Module, and Space Shuttle Orbiter Enterprise. Visitors can learn about the latest developments at the center, scheduled to open on December 15. The site also provides answers to all your basic questions about the center's budgets, reasons for the necessity of the center, and its location.