We can make a similar examination, but with greater uncertainty, of the extraterrestrial hypothesis that holds that a wide range of UFOs… — Carl Sagan Copy Share Image
We've begun at last to wonder about our origins, star stuff contemplating the stars, organized collections of ten billion billion billion atoms… — Carl Sagan Copy Share Image
When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion. — Carl Sagan Copy Share Image
“We inhabit a universe where atoms are made in the centers of stars; where each second a thousand suns are born; where… — Carl Sagan Copy Share Image
“Meanwhile the Cosmos is rich beyond measure: the total number of stars in the universe is greater than all the grains of… — Carl Sagan Copy Share Image
Those with the courage to explore the weave and structure of the Cosmos, even where it differs profoundly from their wishes and… — Carl Sagan Copy Share Image
“There are some hundred billion (1011) galaxies, each with, on the average, a hundred billion stars.” — Carl Sagan Copy Share Image
The cosmos is full beyond measure of elegant truths / of exquisite interrelationships / of the awesome machinery of nature — Carl Sagan Copy Share Image
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
There are as many atoms in one molecule of DNA as there are stars in a typical galaxy. — Carl Sagan Copy Share Image
“The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future,… — Carl Sagan Copy Share Image
The cosmos is all there is, all there ever was, and all there ever will be. — 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 Image
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 Image
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 Image
“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 Image
“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 Image
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 Image
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 Image
“[ 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 Image
“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 Image
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 Image
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 Image
