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Carl Sagan

Carl Edward Sagan (/?se???n/; November 9, 1934 – December 20, 1996) was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences. He is best known for his work as a science popularizer and 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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Somewhere, something incredible is waiting to be known.

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For small creatures such as we the vastness is bearable only through love.

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We live in a society exquisitely dependent on science and technology, in which hardly anyone knows a ...

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If you wish to make an apple pie from scratch, you must first invent the universe.

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Science is a way of thinking much more than it is a body of knowledge.

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We've arranged a civilization in which most crucial elements profoundly depend on science and techno ...

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In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with ...

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Imagination will often carry us to worlds that never were. But without it we go nowhere.

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The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matc ...

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If artificial selection can make such major changes in so short a period of time, what must natural ...

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The symbolism seemed so apt. The same technology that can propel apocalyptic weapons from continent ...

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The Yale anthropologist Weston La Barre goes far as to argue that `a surprisingly good case could be ...

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There are many hypotheses in science that are wrong. That's perfectly alright; it's the aperture to ...

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Likewise, if we offer too much silent assent about mysticism and superstition - even when it seems t ...

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We humans, as species, are interested in communication with extraterrestrial intelligence. Would not ...

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