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Photo copyright R. Gendler: Image that reveals that the Andromeda Galaxy's (M31's) core is composed of a ring of old, red stars and a newly discovered disk of young, blue stars.

Astronomycenter.org is a collection of Astronomy 101 reviewed digital resources for teachers and students...

Image of planets in our solar system and beyond.

Solar System Exploration features lesson plans on electro-magnetism, energy, exploration, gravity, pioneers...

See caption below

NSTA: Teaching Objects provides web-based science learning activities for teachers. Activities include...

Hermann Oberth, a transplanted Romanian, vigorously promoted the idea of spaceflight.

From Stargazers to Starships is a self-contained book-on-the-web course on basic astronomy, Newtonian mechanics, the...


National Science Foundation

NASA

Multiple Agencies

NASA
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