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Carl Sagan was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, science communicator, author, and professor.
* He was born on November 9, 1934, in Brooklyn, New York.
* He earned a bachelor's and a master's degree in physics from the University of Chicago, and a doctorate in astronomy and astrophysics from Harvard University.
* He was a professor at Cornell University from 1968 until his death in 1996.
* He was a leading figure in the Planetary Society, a non-profit organization dedicated to space exploration.
* He was the author of several best-selling books, including Cosmos, Pale Blue Dot, and Contact.
* He was also the host of the popular television series Cosmos: A Personal Voyage.
* He died of myelodysplasia on December 20, 1996, at the age of 62.

Sagan was a brilliant scientist and communicator who helped to popularize science and astronomy. He was a passionate advocate for the search for extraterrestrial life, and his work has inspired generations of scientists and explorers.

The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.

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Life

Carl Sagan

Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.

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Love

Carl Sagan

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

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Science

Carl Sagan

But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.