American astrophysicist, cosmologist, author and science educator
According to Wikipedia,
Carl Edward Sagan was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, 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 hypothesis, accepted since, that the high surface temperatures of Venus can be attributed to, and calculated using, the greenhouse effect. He testified to the US Congress in 1985 that the greenhouse effect will change the earth's climate system.
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Carl Sagan is affiliated with the following schools:
Carl Sagan is most known for their academic work in the field of physics. They are also known for their academic work in the fields of education, engineering, and literature.
Carl Sagan has made the following academic contributions:
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