Wednesday, April 11, 2012

Astronomer Sources: Gerry Neugebauer

http://www.nndb.com/people/061/000171545/

www.badastronomy.com/bad/misc/planetx/science.html

www.universetoday.com/14486/2012-no-planet-x/

Six Not-So-Easy Pieces: Lectures on Symmetry, Relativity and Space-Time by Richard P. Feynman
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