Carl Sagan on origins of Cosmic Knowledge imparted by our Rishis – Video

published on January 18, 2010

Carl Sagan (November 9, 1934 – December 20, 1996) was an American astronomer, astrophysicist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences.

The video clip is adapted from his series on Cosmos.


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