The Astrophysics Visualization Archive is a resource from the Hayden Planetarium for visualizations (movies) that demonstrate astronomical or astrophysical phenomena. http://adsabs.harvard.edu/abs/2001AAS...199.1006A
A three-dimensional mapping of the Universe provided by the American Museum of Natural History and the Hayden Planetarium. Users are able to explore the atlas by "flying" through it on their computers using. The required software is provided as a free download on the site. http://www.haydenplanetarium.org/universe/
Search NASA reports, NACA documents and selected non-NASA archives in the fields of aeronautics, space science, chemistry and materials, engineering, geosciences, life sciences, mathematics and computer sciences, and physics. http://ntrs.nasa.gov/