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A free encyclopedia built collaboratively using wiki software. (Creative Commons Attribution-ShareAlike License).

Links for students, teachers, and the community from the National Aeronautics and Space Administration.

The Astrophysics Data System (ADS) is a NASA-funded project which maintains four bibliographic databases containing more than 4.0 million records: Astronomy and ...

Contains organization overview, membership information, events and newsletters of ELGRA, an international association of European scientists.

NASA authorized moon rock replicas available for purchase.

Current events, FAQs, goals, library, general information.

Located in Washington, D.C., exercises management over the space flight centers, research centers, and other installations that are run by the space program ...

A worldwide hands-on, primary and secondary school-based education and science program. GLOBE is a cooperative effort of schools, led in the United States by a ...