Space Quotes by Carl Sagan

We on Earth have just awakened to the great oceans of space and time from which we have emerged.

— Carl Sagan

Atoms are mainly empty space. Matter is composed chiefly of nothing.

— Carl Sagan

Across the sea of space, the stars are other suns.

— Carl Sagan

The universe is a pretty big place. If it's just us, seems like an awful waste of space.

— Carl Sagan

Any civilization that doesn't develop space travel dies.

— Carl Sagan

“In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with…

— Carl Sagan

There is perhaps no better a demonstration of the folly of human conceits than this distant image of our tiny world.

— Carl Sagan

“Even if the aliens are short, dour, and sexually obsessed—if they’re here, I want to know about them.”

— Carl Sagan

“Across the sea of space. The stars are other suns. We have traveled this way before. And there is much to be…

— Carl Sagan

“We have examined the universe in space and seen that we live on a mote of dust circling a humdrum star in…

— Carl Sagan

“The total amount of energy from outside the solar system ever received by all the radio telescopes on the planet Earth is…

— Carl Sagan

“Venus, it turns out, is broiling hot. There are no swamps, no oil fields, no seltzer oceans. With insufficient data, it is…

— Carl Sagan

In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with…

— Carl Sagan

Since, in the long run, every planetary society will be endangered by impacts from space, every surviving civilization is obliged to become…

— Carl Sagan

“Or perhaps they are here, but in hiding because of some Lex Galactica , some ethic of noninterference with emerging civilizations. We…

— Carl Sagan

Centuries hence, when current social and political problems may seem as remote as the problems of the Thirty Years' War are to…

— Carl Sagan

A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself…

— Carl Sagan

We are made of star stuff. For the most part, atoms heavier than hydrogen were created in the interiors of stars and…

— Carl Sagan

“I’m frequently asked, “Do you believe there’s extraterrestrial intelligence?” I give the standard arguments—there are a lot of places out there, the…

— Carl Sagan

Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become…

— Carl Sagan

Once we overcome our fear of being tiny, we find ourselves on the threshold of a vast and awesome Universe that utterly…

— Carl Sagan

“I'm frequently asked, "Do you believe there's extraterrestrial intelligence?" I give the standard arguments- there are a lot of places out there,…

— Carl Sagan

“I do not think it irresponsible to portray even the direst futures if we are to avoid them we must understand that…

— Carl Sagan

“That place, called the heliopause, is one definition of the outer boundary of the Empire of the Sun. But the Voyager spacecraft…

— Carl Sagan

“Whatever the reason we first mustered the _Apollo_ program, however mired it was in Cold War nationalism and the instruments of death,…

— Carl Sagan

“The scope and audacity of John Kennedy’s May 25, 1961, message to a joint session of Congress on “Urgent National Needs”—the speech…

— Carl Sagan

“A scientific colleague tells me about a recent trip to the New Guinea highlands where she visited a stone age culture hardly…

— Carl Sagan

We on Earth have just awakened to the great oceans of space and time from which we have emerged. We are the…

— Carl Sagan

“We tend to hear much more about the splendors returned than the ships that brought them or the shipwrights. It has always…

— Carl Sagan

“It is conventional wisdom now that anything built by the government will be a disaster. But the two "Voyager" spacecraft were built…

— Carl Sagan

“The laws of nature cannot be randomly reshuffled at the cusps [of an oscillating universe]. If the universe has already gone through…

— Carl Sagan

“Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever…

— Carl Sagan

“Just as there are those who accept every UFO report at face value, there are also those who dismiss the idea of…

— Carl Sagan

“There is a wide yawning black infinity. In every direction the extension is endless, the sensation of depth is overwhelming. And the…

— Carl Sagan

“Planetary exploration satisfies our inclination for great enterprises and wanderings and quests that has been with us since our days as hunters…

— Carl Sagan

“At the very moment that humans discovered the scale of the universe and found that their most unconstrained fancies were in fact…

— Carl Sagan

If there is life, then I believe we should do nothing to disturb that life. Mars then, belongs to the Martians, even…

— Carl Sagan

“Once upon a time, we soared into the Solar System. For a few years. Then we hurried back. Why? What happened? What…

— Carl Sagan

There is every reason to think that in the coming years Mars and its mysteries will become increasingly familiar to the inhabitants…

— Carl Sagan

We are star stuff which has taken its destiny into its own hands. The loom of time and space works the most…

— Carl Sagan