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American astrophysicist, director of the Hayden Planetarium, and popularizer of science. Includes biographical information, articles, and audio and video media.

Learn about Solar System, space exploration and constellations.

An extensive and graphics intensive astronomical learning system. Learn all about the Earth and Space Sciences.A NASA sponsored site.

News publication, events, education, resources, support, and astro shop in San Francisco.

Established 1899, AAS is the major professional organization in North America for astronomers, other scientists and individuals interested in astronomy.

Offers access to professional telescopes worldwide for observations made by school children and teachers. Includes sections for teachers and young observers.

The Exploratorium isn't just a museum, it's an ongoing exploration of science, art, and human perception--a vast collection of online interactives, web features ...

Have fun learning about the awe-inspiring field of astronomy! Learn more about the universe we live in by looking at: animations, videos, and photographs. This ...