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Carl Sagan
08/11/1934 - 19/12/1996Carl Sagan was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is researching about the possibilities of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan is known for his popular science books and for the award-winning 1980 television series 'Cosmos: A Personal Voyage'.United States
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