Carl Sagan

Carl Sagan
Carl Sagan

Carl Edward Sagan 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.

From *.wikipedia.org,
General Info
.
Male
Full Name
Carl Edward Sagan
Date of Birth
November 9th, 1934
Age
89
Birth Place
United States of America, New York, New York City
Date of Death
December 20th, 1996
Died Aged
62
Star Sign
Scorpio
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