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There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across and some ten or fifteen billion years old, this may be the case forever. We are constantly stumbling on new surprises

Carl Sagan

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Carl Sagan
Age: 62 †
Born: 1934
Born: November 9
Died: 1996
Died: December 20
Astronomer
Astrophysicist
Cosmologist
Naturalist
Non-Fiction Writer
Novelist
Physicist
Planetary Scientist
Science Communicator
Brooklyn
New York
Carl Edward Sagan
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
Light
Case
Mysteries
Stills
Mystery
Fifteen
Still
Cases
Billion
May
Forever
Billions
Many
Universe
Ten
Tens
Much
Understand
Constantly
Stumbling
Years
Science
Surprise
Resolved
Doesn
Across
Surprises

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Science arouses a soaring sense of wonder. But so does pseudoscience. Sparse and poor popularizations of science abandon ecological niches that pseudoscience promptly fills. If it were widely understood that claims to knowledge require adequate evidence before they can be accepted, there would be no room for pseudoscience.
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If the greenhouse effect is a blanket in which we wrap ourselves to keep warm, nuclear winter kicks the blanket off.
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The evidence, so far at least and laws of Nature aside, does not require a Designer. Maybe there is one hiding, maddeningly unwilling to be revealed.
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In many cultures it is customary to answer that God created the universe out of nothing. But this is mere temporizing. If we wish courageously to pursue the question, we must, of course ask next where God comes from? And if we decide this to be unanswerable, why not save a step and conclude that the universe has always existed?
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We are star stuff which has taken its destiny into its own hands.
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To live in the hearts of others is to never die in those we leave behind.
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The simplest thought, like the concept of the number one, has an elaborate logical underpinning.
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Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.
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One of the great commandments of science is: 'Mistrust arguments from authority.'
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Any civilization that doesn't develop space travel dies.
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An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God. I know of no such compelling evidence.
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Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.
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In more than one respect, the exploring of the Solar System and homesteading other worlds constitutes the beginning, much more than the end, of history.
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The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge it has no in the endeavor of science. We do not know in advance who will discover fundamental insights.
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As the ancient myth makers knew, we are children equally of the earth and the sky.
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Extraordinary claim requires extraordinary proof.
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Otherwise we don't run the government the government runs us
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A googolplex is precisely as far from infinity as is the number 1... no matter what number you have in mind, infinity is larger still.
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I don?t feel rejected by the sky. I?m a part of it- tiny, to be sure, but everything is tiny compared to that overwhelming immensity.
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Cleverly designed experiments are the key.
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