Quotes & Sayings About Space Carl Sagan

Across the sea of space, the stars are other suns. — Carl Sagan

Knee-deep in the cosmic overwhelm, I'm stricken
by the ricochet wonder of it all: the plain
everythingness of everything, in cahoots
with the everythingness of everything else.
- From Diffraction (for Carl Sagan) — Diane Ackerman

National boundaries are not evident when we view the Earth from space. Fanatical ethnic or religious or national chauvinisms are a little difficult to maintain when we see our planet as a fragile blue crescent fading to become an inconspicuous point of light against the bastion and citadel of the stars. — Carl Sagan

Keeping an open mind is a virtue - but, as the space engineer James Oberg once said, not so open that your brains fall out. — Carl Sagan

Any civilization that doesn't develop space travel dies. — Carl Sagan

You get to thinking of the Earth as an organism, a living thing. You get to worry about it, care for it, wish it well. National boundaries are as invisible as meridians of longitude, or the Tropics of Cancer and Capricorn. The boundaries are arbitrary. The planet is real. Spaceflight, therefore, is subversive. If they are fortunate enough to find themselves in Earth orbit, most people, after a little meditation, have similar thoughts. The nations that had instituted spaceflight had done so largely for nationalistic reasons; it was a small irony that almost everyone who entered space received a startling glimpse of a transnational perspective, of the Earth as one world. It — Carl Sagan

Whatever the reason we first mustered the _Apollo_ program, however mired it was in Cold War nationalism and the instruments of death, the inescapable recognition of the unity and fragility of the Earth is its clear and luminous dividend, the unexpected final gift of _Apollo_. What began in deadly competition has helped us to see that global cooperation is the essential precondition for our survival.
Travel is broadening. It's time to hit the road again. — Carl Sagan

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

Science cuts two ways, of course; its products can be used for both good and evil. But there's no turning back from science. The early warnings about technological dangers also come from science. — Carl Sagan

At the very moment that humans discovered the scale of the universe and found that their most unconstrained fancies were in fact dwarfed by the true dimensions of even the Milky Way Galaxy, they took steps that ensured that their descendants would be unable to see the stars at all. For a million years humans had grown up with a personal daily knowledge of the vault of heaven. In the last few thousand years they began building and emigrating to the cities. In the last few decades, a major fraction of the human population has abandoned a rustic way of life. As technology developed and the cities were polluted, the nights became starless. New generations grew to maturity wholly ignorant of the sky that had transfixed their ancestors and that had stimulated the modern age of science and technology. Without even noticing, just as astronomy entered a golden age most people cut themselves off from the sky, a cosmic isolationism that ended only with the dawn of space exploration. — Carl Sagan

We are made of star stuff. For the most part, atoms heavier than hydrogen were created in the interiors of stars and then expelled into space to be incorporated into later stars. The Sun is probably a third generation star. — Carl Sagan

Once we lose our fear of being tiny, we find ourselves on the threshold of a vast and awesome Universe which dwarfs
in time, in space, and in potential
the tidy anthropocentric proscenium of our ancestors. — Carl Sagan

The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. — Carl Sagan

Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But the Voyager record will still be largely intact, in some other remote region of the Milky Way galaxy, preserving a murmur of an ancient civilization that once flourished - perhaps before moving on to greater deeds and other worlds - on the distant planet Earth. — Carl Sagan

Our television signals leave this planet and go out into space ... the signals spread out from the earth in spherical waves, a little like ripples in a pond. They travel at the speed of light, 186,000 miles a second, and essentially go on forever. The better some other civilizations receivers are, the farther away they could be and still pick up our tv signals. Even we could detect a strong tv transmission from a planet going around the nearest star.' President: 'You mean everything? You mean to say all that crap on television - the car crashes, wrestling, the porno channels, the evening news? — Carl Sagan

That place, called the heliopause, is one definition of the outer boundary of the Empire of the Sun. But the Voyager spacecraft will plunge on, penetrating the heliopause sometime in the middle of the twenty-first century, skimming through the ocean of space, never to enter another solar system, destined to wander through eternity far from the stellar islands and to complete its first circumnavigation of the massive center of the Milky Way a few hundred million years from now. We have embarked on epic voyages. — Carl Sagan

We have a theology that is Earth-centered and involves a tiny piece of space, and when we step back, when we attain a broader cosmic perspective, some of it seems very small in scale. And in fact a general problem with much of Western theology in my view is that the God portrayed is too small. It is a god of a tiny world and not a god of a galaxy, much less of a universe. — Carl Sagan

[an encounter in space] Some celestial event. No
no words
no words to describe it. Poetry! They should have sent a poet. So beautiful. So beautiful ... I had no idea. I had no idea. — Carl Sagan

Before we invented civilization our ancestors lived mainly in the open out under the sky. Before we devised artificial lights and atmospheric pollution and modern forms of nocturnal entertainment we watched the stars. There were practical calendar reasons of course but there was more to it than that. Even today the most jaded city dweller can be unexpectedly moved upon encountering a clear night sky studded with thousands of twinkling stars. When it happens to me after all these years it still takes my breath away. — Carl Sagan

Many people remember that when in 1977 the Voyager spacecraft was launched, opinions were canvassed as to what artefacts would be most appropriate to leave in outer space as a signal of man's cultural achievements on earth. The American astronomer Carl Sagan proposed that 'if we are to convey something of what humans are about then music has to be a part of it.' To Sagan's request for suggestions, the eminent biologist Lewis Thomas answered, 'I would send the complete works of Johann Sebastian Bach.' After a pause, he added, 'But that would be boasting. — John Eliot Gardiner

A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless, what is the value of a human being? — Carl Sagan

A single message from space will show that it is possible to live through technological adolescence ... It is possible that the future of human civilization depends on the receipt of interstellar messages. — Carl Sagan

We can make a similar examination, but with greater uncertainty, of the extraterrestrial hypothesis that holds that a wide range of UFOs viewed on the planet Earth are space vehicles from planets of other stars. — Carl Sagan

The vast distances that separate the stars are providential. Beings and worlds are quarantined from one another. The quarantine is lifted only for those with sufficient self-knowledge and judgment to have safely traveled from star to star. — Carl Sagan

Even if the aliens are short, dour, and sexually obsessed - if they're here, I want to know about them. — Carl Sagan

Everything not forbidden by the laws of nature, he assured her - quoting a colleague down the hall - is mandatory. — Carl Sagan

Once upon a time, we soared into the Solar System. For a few years. Then we hurried back. Why? What happened? What was 'Apollo' really about? — Carl Sagan

Another glorious feature of many modern science museums is a movie theater showing IMAX or OMNIMAX films. In some cases the screen is ten stories tall and wraps around you. The Smithsonian's National Air & Space Museu, the popular museum on Earth, has premiered in its Langley Theater some of the best of these films. 'To Fly' brings a catch to my throat even after five or six viewings. I've seen religious leaders of many denominations witness 'Blue Planet' and be converted on the spot to the need to protect the Earth's environment — Carl Sagan

The American and Russian capabilities in space science and technology mesh; they interdigitate. Each is strong where the other is weak. This is a marriage made in heaven - but one that has been surprisingly difficult to consummate. — Carl Sagan

If we are to send people, it must be for a very good reason - and with a realistic understanding that almost certainly we will lose lives. Astronauts and Cosmonauts have always understood this. Nevertheless, there has been and will be no shortage of volunteers. — Carl Sagan

Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring
not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive ... If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. — Carl Sagan

I think I set myself on a course to become a scientist around about the time that Carl Sagan's 'Cosmos' series was on television, and there really was no going back for me at that point, and then I went on to study space science and then get my Ph.D., then go aboard and work in the European Space Agency. — Alastair Reynolds

I find these comparisons particularly poignant: life versus death, hope versus fear. Space exploration and the highly mechanized destruction of people use similar technology and manufacturers, and similar human qualities of organization and daring. Can we not make the transition from automated aerospace killing to automated aerospace exploration of the solar system in which we live? — Carl Sagan

The Apollo pictures of the whole Earth conveyed to multitudes something well known to astronomers: On the scale of the worlds - to say nothing of stars or galaxies - humans are inconsequential, a thin film of life on an obscure and solitary lump of rock and metal — Carl Sagan

We have examined the universe in space and seen that we live on a mote of dust circling a humdrum star in the remotest corner of an obscure galaxy. — Carl Sagan

Birds know, better than humans, not to spoil the nest. — Carl Sagan

By looking far out into space we are also looking far back into time, back toward the horizon of the universe, back toward the epoch of the Big Bang. — Carl Sagan

On Titan the molecules that have been raining down like manna from heaven for the last 4 billion years might still be there largely unaltered deep-frozen awaiting the chemists from Earth — Carl Sagan

Sailors on a becalmed sea, we sense the stirring of a breeze. — Carl Sagan

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

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

Spaceflight, therefore, is subversive. If they are fortunate enough to find themselves in orbit, most people, after a little meditation, have similar thoughts. The nations that had instituted spaceflight had done so largely for nationalistic reasons; it was a small irony that almost everyone who entered space received a startling glimpse of a transnational perspective, of the Earth as one world. — Carl Sagan

Voyages to the outer solar system are controlled from a single place on the planet Earth, the Jet Propulsion Laboratory (JPL) of the National Aeronautics and Space Administration in Pasadena, California. — Carl Sagan

I do not think it irresponsible to portray even the direst futures if we are to avoid them we must understand that they are possible. But where are the alternatives Where are the dreams that motivate and inspire We long for realistic maps of a world we can be proud to give to our children. Where are the cartographers of human purpose Where are the visions of hopeful futures of technology as a tool for human betterment and not a gun on hair trigger pointed at our heads — Carl Sagan

Centuries hence, when current social and political problems may seem as remote as the problems of the Thirty Years' War are to us, our age may be remembered chiefly for one fact: It was the time when the inhabitants of the earth first made contact with the vast cosmos in which their small planet is embedded. — Carl Sagan

A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet. One of the great revelations of the age of space exploration is the image of the earth finite and lonely, somehow vulnerable, bearing the entire human species through the oceans of space and time. — Carl Sagan

We will know which stars to visit. Our descendants will then skim the light years, the children of Thales and Aristarchus, Leonardo and Einstein. — Carl Sagan

A human being weighing 70 kilograms contains among other things:
-45 litres of water
-Enough chalk to whiten a chicken pen
-Enough phosphorus for 2,200 matches
-Enough fat to make approximately 70 bars of soap
-Enough iron to make a two inch nail
-Enough carbon for 9,000 pencil points
-A spoonful of magnesium
I weigh more than 70 kilograms.
And I remember a TV series called Cosmos. Carl Sagan would walk around on a set that was meant to look like space, speaking in large numbers. On one of the shows he sat in front of a tank full of all the substances human beings are made of. He stirred the tank with a stick wondering if he would be able to create life.
He didn't succeed.
— Erlend Loe

In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie.
[Dedication to Sagan's wife, Ann Druyan, in Cosmos] — Carl Sagan

In the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist's signature. — Carl Sagan

Except for hydrogen, all the atoms that make each of us up - the iron in our blood, the calcium in our bones, the carbon in our brains - were manufactured in red giant stars thousands of light-years away in space and billions of years ago in time. We are, as I like to say, starstuff. — Carl Sagan

The total amount of energy from outside the solar system ever received by all the radio telescopes on the planet Earth is less than the energy of a single snowflake striking the ground. — Carl Sagan

We tend to hear much more about the splendors returned than the ships that brought them or the shipwrights. It has always been that way. Even those history books enamored of the voyages of Christopher Columbus do not tell much about the builders of the Nina the Pinta and the Santa Maria or about the principle of the caravel. These spacecraft their designers builders navigators and controllers are examples of what science and engineering set free for well-defined peaceful purposes can accomplish. Those scientists and engineers should be role models for an America seeking excellence and international competitiveness. They should be on our stamps. — Carl Sagan

It is now almost possible to assign color combinations, based on the colors of clouds and sky, to every planet in the Solar System - from the sulfur-stained skies of Venus and the rusty skies of Mars to the aquamarine of Uranus and the hypnotic and unearthly blue of Neptune. Sacre-jaunt, sacre-rouge, sacre-vert. Perhaps they will one day adorn the flags of distant human outposts in the Solar System, in that time when the new frontiers are sweeping out from the Sun to the stars, and the explorers are surrounded by the endless black of space. Sacre-noir. — Carl Sagan

I would be very ashamed of my civilization if we did not try to find out if there is life in outer space. — Carl Sagan

I ... had ambition not only to go farther than anyone had done before," wrote Captain James Cook, the eighteenth-century explorer of the Pacific, "but as far as it was possible for man to go." Two centuries later, Yuri Romanenko, on returning to Earth after what was then the longest space flight in history, said "The Cosmos is a magnet ... Once you've been there, all you can think of is how to get back. — Carl Sagan

Let's see if I got this right," she would say to herself. "I've taken an inert gas that's in the air, made it into a liquid, put some impurities in a ruby, attached a magnet, and detected the fires of creation. — Carl Sagan

Imagine we could accelerate continuously at 1 g-what we're comfortable with on good old terra firma-to the midpoint of our voyage, and decelerate continuously at 1 g until we arrive at our destination. It would take a day to get to Mars, a week and a half to Pluto, a year to the Oort Cloud, and a few years to the nearest stars. — Carl Sagan

Something very strange is going on in the depths of space. — Carl Sagan

Na Arean sat alone in space as a cloud that floats in nothingness. He slept not, for there was no sleep; he hungered not, for as yet there was no hunger. So he remained for a great while, until a thought came to his mind. He said to himself, I will make a thing. — Carl Sagan

With an ambassador, you're supposed to put your best foot forward, and we've been sending mainly crap to space for forty years. — Carl Sagan