Monday, 31 August 2015

Cosmic Celebrity – Carl Sagan Biography

Carl Edward Sagan (November 9, 1934 December 20, 1996) was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and also various other science of matters. His contributions were main to the exploration of the high surface area temperatures of Venus. However, he is most ideal known for his contributions [ ]

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