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From Stargazers to Starships
URL: http://www-spof.gsfc.nasa.gov/stargaze/Sintro.htm
Submitted: Sat Sep 06 2003
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CT: Space: From Stargazers to Starships
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Description:
The motion of Earth in space, Newtonian mechanics, spaceflight and spacecraft, and a math refresher, on a high school level. This site deals with the world of gravity--of massive planets and stars, and the way spaceflight is achieved despite their strong pull.