Carl Sagan
(1934-1996)
American, Astronomer
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Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, poet, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the now-accepted hypothesis that the high surface temperatures of Venus can be attributed to and calculated using the greenhouse effect.
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| Born |
Carl Edward Sagan 9 November 1934 Brooklyn, New York, USA
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| Died |
20 December 1996 (aged 62) Seattle, Washington, USA
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| Zodiac | Scorpio |
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