The National Air and Space Museum maintains the largest collection of aircraft and spacecraft in the world. It is also a vital center for research into the history, science, and technology of aviation and spaceflight, as well as planetary science and terrestrial geology and geophysics. Exhibits have become very hands-on, with the addition of flight simulators in both locations. Countless other items - among them space photos and art, rockets and engines, space wardrobes, and written historical materials - capture the complexity of the history of flight, at home and around the world.

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