A galaxy is composed of gas and dust and stars - billions upon billions of stars. Every star may be a sun… — Carl Sagan Copy Share Image
A still more glorious dawn awaits / not a sunrise, but a galaxy-rise / a morning filled with 400 billion suns /… — Carl Sagan Copy Share Image
After the earth dies, some 5 billion years from now, after it's burned to a crisp, or even swallowed by the Sun,… — Carl Sagan Copy Share Image
We are made of star stuff. For the most part, atoms heavier than hydrogen were created in the interiors of stars and… — Carl Sagan Copy Share Image
Our ancestors worshipped the Sun, and they were not that foolish. It makes sense to revere the Sun and the stars, for… — Carl Sagan Copy Share Image
We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an… — Carl Sagan Copy Share Image
Maybe it's a little early. Maybe the time is not quite yet. But those other worlds - promising untold opportunities - beckon.… — Carl Sagan Copy Share Image
I can find in my undergraduate classes, bright students who do not know that the stars rise and set at night, or… — Carl Sagan Copy Share Image
The lifetime of a human being is measured by decades, the lifetime of the Sun is a hundred million times longer. Compared… — Carl Sagan Copy Share Image
“Our Sun is a second- or third-generation star. All of the rocky and metallic material we stand on, the iron in our… — Carl Sagan Copy Share Image
I went to the librarian and asked for a book about stars… And the answer was stunning. It was that the Sun… — Carl Sagan Copy Share Image
The reappearance of the crescent moon after the new moon; the return of the Sun after a total eclipse, the rising of… — Carl Sagan Copy Share Image
The Hindu religion is the only one of the world’s great faiths dedicated to the idea that the Cosmos itself undergoes an… — Carl Sagan Copy Share Image
“There is a place with four suns in the sky-red, white, blue, and yellow; two of them are so close together that… — Carl Sagan Copy Share Image
The cosmic calendar compresses the local history of the universe into a single year. If the universe began on January 1st it… — Carl Sagan Copy Share Image
Some 5 billion years from now, there will be a last perfect day on Earth... then the sun will begin to die,… — Carl Sagan Copy Share Image
It is sometimes said that scientists are unromantic, that their passion to figure out robs the world of beauty and mystery. But is it… — Carl Sagan Copy Share
The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from… — Carl Sagan Copy Share
The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge; it has no… — Carl Sagan Copy Share
“Telepathy’ literally means to feel at a distance, just as ‘telephone’ is to hear at a distance and ‘television’ is to see at a… — Carl Sagan Copy Share
“On the scale of worlds—to say nothing of stars or galaxies—humans are inconsequential, a thin film of life on an obscure and solitary lump… — Carl Sagan Copy Share
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies,… — Carl Sagan Copy Share
In our time, we have sifted the sands of Mars, we have established a presence there, we have fulfilled a century of dreams! — Carl Sagan Copy Share
“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion,… — Carl Sagan Copy Share
“Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insight and knowledge, painfully… — Carl Sagan Copy Share
We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make… — Carl Sagan Copy Share
A tiny blue dot set in a sunbeam. Here it is. That's where we live. That's home. We humans are one species and this… — Carl Sagan Copy Share
Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no. — Carl Sagan Copy Share
Humans — who enslave, castrate, experiment on, and fillet other animals — have had an understandable penchant for pretending animals do not feel pain.… — Carl Sagan Copy Share
