90+ Best Space Quotes on the Universe’s Mysteries

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Explore our collection of space quotes that the wonder, and curiosity about the cosmos.

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In this single galaxy of ours, there are eighty-seven thousand million suns.

When I first looked back at the Earth, standing on the moon, I cried.

That’s one small step for a man, one giant leap for mankind.

Earth is a small town with many neighborhoods in a very big universe. ― Ron Garan

Two possibilities exist either we are alone in the universe or we are not. Both are equally terrifying. – Arthur C. Clark

Space Quotes

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

Scientific people . . . know very well that Time is only a kind of Space.

Not just beautiful, though–the stars are like the trees in the forest, alive and breathing. And they’re watching me.

In my studies of astronomy and philosophy I hold this opinion about the universe, that the Sun remains fixed in the center of the circle of heavenly bodies, without changing its place; and the Earth, turning upon itself, moves around the Sun. – Galileo Galilei

Every generation should free men’s minds for a look at new worlds . . . to look out from a higher plateau than the last generation. – Ellison S. Onizuka

And in that moment, I was hit with the realization that this delicate layer of atmosphere is all that protects every living thing on Earth from perishing in the harshness of space. ― Ron Garan

How can you look at the galaxy and not feel insignificant? – Ridley Scott

I don’t know what you could say about a day in which you have seen four beautiful sunsets. – – John Glenn [US Marine Corps Aviator & Astronaut]

There is a thing about Time and Space that the philosopher Einstein is going to find out. Some people call it Destiny.

Einstein was searching for String Theory. It not only reconciles General Relativity to Quantum Mechanics, but it reconciles Science and the Bible as well. – Roy H. Williams

And I suddenly realized the molecules of my body, and the molecules of the spacecraft, the molecules in the body of my partners, were prototyped and manufactured in some ancient generation of stars. And that was an overwhelming sense of oneness, of connectedness. It wasn’t ‘them and us,’ it was, ‘that’s me, that’s all of it, it’s one thing.’ And it was accompanied by ecstasy, a sense of … epiphany. — Edgar Mitchell

Space can produce a triple bottom line or ROI: Return on Investment, Innovation, and Inspiration.

The Earth is the cradle of humanity, but mankind cannot stay in the cradle forever. ― Konstantin Tsiolkovsky

Once you can accept the universe as matter expanding into nothing that is something, wearing stripes with plaid comes easy. – Albert Einstein

If offered a seat on a rocket ship, don’t ask what seat. Just get on. – – Christa McAuliffe [US Teacher & Astronaut]

It is far better to grasp the universe as it is than to persist in delusion, however satisfying and reassuring.

There is no difference between Time and any of the three dimensions of Space except that our consciousness moves along it.

I’m choosing happiness over suffering, I know I am. I’m making space for the unknown future to fill up my life with yet-to-come surprises.

Because there is a law such as gravity, the universe can and will create itself from nothing. – Stephen Hawking

At this point, I thought ‘We made it,’ by which I meant ‘We survived.’ I also was acutely aware that my childhood dream of flying into space had just come true. — Ron Garan

It is a fixer-upper of a planet but we could make it work.

Okay, Houston, we’ve had a problem here. – – John “Jack” Swigert [US Pilot, Engineer & Astronaut]

he universe seems neither benign nor hostile, merely indifferent.

I saw the years of my life spaced along a road in the form of telephone poles, threaded together by wires. I counted one, two, three … nineteen telephone poles, and then the wires dangled into space, and try as I would, I couldn’t see a single pole beyond the nineteenth.

Love one another, but make not a bond of love: Let it rather be a moving sea between the shores of your souls.

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do. – Galileo Galilei

There are no passengers on spaceship Earth. We are all crew. – Marshall McLuhan

It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn’t feel like a giant. I felt very, very small.— Neil Armstrong

The planet was our mother and our burial ground. No wonder the human spirit wished to leave. Leave this prolific belly. Leave also this great tomb. ― Saul Bellow

Did you think that the skills astronauts have are just applicable in space? Think again!

The universe is not required to be in perfect harmony with human ambition.

The stars were thinning out; the glare of the Milky Way was dimming into a pale ghost of the glory he had known—and, when he was ready, would know again. He was back, precisely where he wished to be, in the space that men called real.

The three rules of the Librarians of Time and Space are: 1) Silence; 2) Books must be returned no later than the last date shown; and 3) Do not interfere with the nature of causality.

When I orbited the Earth in a spaceship, I saw for the first time how beautiful our planet is. Mankind, let us preserve and increase this beauty, and not destroy it! – Yuri Gagarin

I find it curious that I never heard any astronaut say that he wanted to go to the moon so he would be able to look back and see the Earth. We all wanted to see what the moon looked like close up. Yet, for most of us, the most memorable sight was not of the moon, but of our beautiful blue and white home, moving majestically around the sun, all alone and in infinite black space. — Alan Bean

Discover the force of the skies O Men: once recognized it can be put to use.

As long as we are a single-planet species, we are vulnerable to extinction by a planetwide catastrophe, natural or self-induced. Once we become a multi-planet species, our chances to live long and prosper will take a huge leap skyward. ― David Grinspoon

On Earth, men are seen as superior because of their physical strength, but it means nothing in space, where there is no gravity. – Yi So-Yeon

Astronauts are inherently insane. And noble. – – Andy Weir [US Novelist]

I didn’t feel like a giant. I felt very, very small.

Rocks are space, and space is an illusion.

Depression isn’t a war you win. It’s a battle you fight every day. You never stop, and never get to rest. It’s one bloody fray after another.

Space is for everybody. It’s not just for a few people in science or math, or a select group of astronauts. That’s our new frontier, and it’s everybody’s business to know about space. – Christa McAuliffe

Mystery creates wonder and wonder is the basis of man’s desire to understand. — Neil Armstrong

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

The time was fast approaching when Earth, like all mothers, must say farewell to her children. ― Arthur C. Clarke

Becoming an astronaut is not a question of being the best at something or things coming easy to you, but it’s being a person who can work with others and not give up. – – Michael J Massimino [US Professor & Astronaut]

I’m coming back in and it’s the saddest moment of my life.

Whispering makes a narrow place.

Stuart needs “space” and “time,” as if this were physics and not a human relationship.

I’m sure the universe is full of intelligent life. It’s just been too intelligent to come here. – Arthur C. Clarke

The Earth was small, light blue, and so touchingly alone, our home that must be defended like a holy relic. The Earth was round. I believe I never knew what the word round meant until I saw Earth from space. — Alexei Leonov

The history of astronomy is a history of receding horizons.

Earth is the best planet in our solar system. We go to space to save Earth. ― Jeff Bezos

What everyone in the astronaut corps shares in common is not gender or ethnic background, but motivation, perseverance, and desire — the desire to participate in a voyage of discovery. – – Ellen Ochoa [US Engineer & Astronaut]

Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.

The immense distances to the stars and the galaxies mean that we see everything in space in the past–some as they were before the Earth came to be. Telescopes are time machines.

saw the world from the stars’ point of view, and it looked unbearably lonely.

Every inhabitant of this planet must contemplate the day when this planet may no longer be habitable. – John F. Kennedy

Weightlessness was wonderful, and I was surprised at how natural it felt. — Ron Garan

What we call ‘time’ isn’t chronological but spatial; what we call ‘death’ is merely a transition between different kinds of matter.

We must stop this insane foraging; this conveying of our lunacies from one segment of the solar system to the next; we must, I say, stay on our home planet and work out our problems in the Arena of our birth. ― Barry N. Malzberg

We came all this way to explore the moon, and the most important thing is that we discovered the Earth. – William Anders

Anyone who sits on top of the largest hydrogen-oxygen fueled system in the world, knowing they’re going to light the bottom, and doesn’t get a little worried, does not fully understand the situation. – – John Young [US Astronaut]

I don’t think the human race will survive the next thousand years unless we spread into space. There are too many accidents that can befall life on a single planet. But I’m an optimist. We will reach out to the stars.

I would like to love you, but I do not know you and I value space more than even love, for in space we can play.

That’s what it feels like when you touch me. Like millions of tiny universes being born and then dying in the space between your finger and my skin. Sometimes I forget.

I cannot join the space program and restart my life as an astronaut, but this opportunity to connect my abilities as an educator with my interests in history and space is a unique opportunity to fulfill my early fantasies. I watched the space program being born, and I would like to participate. – Christa McAuliffe

The Earth reminded us of a Christmas tree ornament hanging in the blackness of space. As we got farther and farther away it diminished in size. Finally, it shrank to the size of a marble, the most beautiful marble you can imagine. That beautiful, warm, living object looked so fragile, so delicate, that if you touched it with a finger it would crumble and fall apart. — James Irwin

This means that most of the lunar surface material has a consistency that is finer than granulated sugar.

Returning to Earth, was the challenging part. ― Buzz Aldrin

Forget scientists. For the next space launch, we should send up painters, poets, and musicians. I’d be more interested in what they discover than anything that takes place in a test tube. – – James Rozoff [US Author]

I think we are at the dawn of a new era in commercial space exploration.

Visual impressions are greatly intensified and the eye recovers some of the perceptual innocence of childhood, when the sensum was not immediately and automatically subordinated to the concept. Interest in space is diminished and interest in time falls almost to zero.

Beyond the edge of the world, there’s a space where emptiness and substance neatly overlap, where the past and future form a continuous, endless loop. And, hovering about, there are signs no one has ever read, chords no one has ever heard.

The American, by nature, is optimistic. – John F. Kennedy

The stars don’t look bigger, but they do look brighter. — Sally Ride

During that time, there will be advances in nanotechnology, space sailing, robotics, biomolecular engineering, and artificial intelligence.

Little minds will never win the stars; we must be as big as space itself. ― Robert A. Heinlein

The only thing that scares me more than space aliens is the idea that there aren’t any space aliens. We can’t be the best that creation has to offer. I pray we’re not all there is. If so, we’re in big trouble. ― Ellen DeGeneres

NASA’s next urgent mission should be to send good poets into space so they can describe what it’s really like. – – Shannon Hale [US Author]

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