Carl Edward Sagan (/ˈseɪɡən/; 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 contributions to the scientific research of 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. He published more than 600 scientific papers and articles and was author, co-author or e... More
Carl Sagan Quotes
Carl Sagan #Good
A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.
Carl Sagan #Good #Intelligence
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
Carl Sagan #Knowledge #Science
Science is a way of thinking much more than it is a body of knowledge.
Carl Sagan #Religion #Science
Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.
Carl Sagan #Science
If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?
Carl Sagan #Science #Technology
We've arranged a civilization in which most crucial elements profoundly depend on science and technology.
Carl Sagan #Education #Science
I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students.
Carl Sagan #Nature
If you wish to make an apple pie from scratch, you must first invent the universe.
Carl Sagan #Love
For small creatures such as we the vastness is bearable only through love.
Carl Sagan #Power #Science #Technology
We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.
Carl Sagan #Imagination
Imagination will often carry us to worlds that never were. But without it we go nowhere.
Carl Sagan #Science #Society #Technology
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
Carl Sagan #Technology
All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.
Carl Sagan #Death #History #Learning
Personally, I would be delighted if there were a life after death, especially if it permitted me to continue to learn about this world and others, if it gave me a chance to discover how history turns out.