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RE: HELP! I Gotta` Science Report On...please HELP!

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Posted by Larry Usrey on April 4, 2000 17:33:53 UTC

In 1513 Nicolaus Copernicus developed the heilocentric theory (sun centered) of the solar system. Previous to that it was belived that the Earth was the center of the solar system (Ptolemy).
Here is a few search words to use to find info. on the questions you are asking about.
-Copernicus
-Stellar evolution
-Black holes
Good luck and clear skies,
Starman :>)

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