Skip to content

Quote by Carl Sagan

“A radio telescope works more like a light meter than a camera. You point it toward some fairly broad region of the sky, and it records how much energy, in a particular radio frequency, is coming down to Earth.” quote by Carl Sagan — Download Open image

““A radio telescope works more like a light meter than a camera. You point it toward some fairly broad region of the sky, and it records how much energy, in a particular radio frequency, is coming down to Earth.””

★ ★ ★ ★ ★ 2.0 out of 5 (4 ratings)

More by Carl Sagan

It is sometimes said that scientists are unromantic, that their passion to figure out robs the world of beauty and mystery. But is it not stirring to understand how the world actually works — that white light is made of colors, that color is the way we perceive the wavelengths of light, that transparent air reflects light, that in so…

The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from…

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…

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 distance. The word suggests the communication not of thoughts but of feelings, emotions. Around a quarter of all Americans believe they’ve experienced something like telepathy. People who know each other very well, who live together, who…

“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…

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,…

Image

In our time, we have sifted the sands of Mars, we have established a presence there, we have fulfilled a century of dreams!

Image

“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion,…

Image

Don't judge everyone else by your own limited experience.

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 extracted from Nature, of the greatest minds that ever were, with the best teachers, drawn from the entire planet and from all our history, to instruct us without tiring, and to inspire us to make our…

We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make up the Milky Way Galaxy which is one of billions of other galaxies which make up a universe which may be one of a very large number, perhaps an infinite number, of other universes. That is…

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…

Image

Explore all 1,043 Carl Sagan quotes