All my life, I've wondered about life beyond the earth. On those countless other planets that we think circle other suns, is there also life? Might t… - Carl Sagan

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All my life, I've wondered about life beyond the earth. On those countless other planets that we think circle other suns, is there also life? Might the beings of other worlds resemble us, or would they be astonishingly different? What would they be made of? In the vast Milky Way galaxy, how common is what we call life? The nature of life on earth and the quest for life elsewhere are the two sides of the same question: the search for who we are.

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About Carl Sagan

Carl Edward Sagan (9 November 1934 – 20 December 1996) 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.

Biography information from Wikiquote

Also Known As

Native Name: Carl Edward Sagan
Alternative Names: Sagan Carl E. Sagan Carl E Sagan C. E. Sagan C.E. Sagan C E Sagan C. Sagan C Sagan Sagan C Sagan C. Sagan C. E. Sagan CE
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Additional quotes by Carl Sagan

The tragedy of the human species is it has evolved the capacity of foresight, but refuses to use it.

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Çağımızın üçüncü dünya sorunlarından en önemlisi, okumuş sınıfların zengin çocukları olması, bunların da statükonun sürüp gitmesinden çıkarları bulunması ve kol işçiliğine yatkın olmadıktan başka, alışılmış bilgi sınırlarını aşmak için meydan okumaya kalkışmamalarıdır. Bilimin kök salması çok yavaş gerçekleşiyor.

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