Terry Pratchett Quotes

While human space travel is daunting, machines - with their indefinitely long lifetimes - could travel the galaxy. It might make little difference to them that bridging the distance from one star to the next could take hundreds of thousands of years or more.

I think the human race doesn't have a future if it doesn't go into space.

It's hardly a secret that I'm skeptical of declarations that the aliens are out and about on our planet. Still, I try to answer every one of these mails and phone calls because, after all, it's not a violation of physics to travel from one star system to another.

The energy requirements for interstellar travel are so great that it is inconceivable to me that any creatures piloting their ships across the vast depths of space would do so only in order to play games with us over a period of decades. If they want to make contact, they would make contact; if not, they would save their energy and go elsewhere.

I ended up realizing that NASA was unlikely to get me into space, or get me to the moon or beyond, and I needed some other way to drive this.

I left Earth three times and found no other place to go. Please take care of Spaceship Earth.

A lot of prizes have been awarded for showing the universe is not as simple as we might have thought.

Even light, which travels so fast it takes most races thousands of years to realize that it travels at all, takes time to journey between the stars.

I'm more interested in, you know, SpaceX and Tesla, what's going to happen with our intergalactic possibilities.

The future is about wings and wheels and new forms of space transportation, along with our deep-space ambition to set foot on another world in our solar system: Mars. I firmly believe we will establish permanence on that planet. And in reaching for that goal, we can cultivate commercial development of the moon, the asteroid belt, the Red Planet itself and beyond.

Traveling through space is stupifyingly monotonous.

What were we doing here? Traveling hundreds or thousands of light-years, to break our hearts?

I do not foresee 'spaceships' to the moon or Mars. Mortals must live and die on Earth or within its atmosphere!

When I'm a man, I will be an astronaut, and find Peter Pan on the second star on the right.

We've sent a man to the moon and that's 29,000 miles away. The center of the Earth is only 4,000 miles away. You could drive that in a week but for some reason nobody's ever done it.

I thought it would be an enormous amount of fun to make a movie that heads out into space, which is something that we had never done before.

We have traveled through space and time. We have been many places. Visited many worlds. And there is good news: the acoustics everywhere are terrific.

The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars.

There's so many different worlds.

At two-tenths the speed of light, dust and atoms might not do significant damage even in a voyage of 40 years, but the faster you go, the worse it is--space begins to become abrasive. When you begin to approach the speed of light, hydrogen atoms become cosmic-ray particles, and they will fry the crew. ...So 60,000 kilometers per second may be the practical speed limit for space travel.

I can't think that leaving Earth once is enough.

Every age has its dreams, its symbols of romance. Past generations were moved by the graceful power of the great windjammers, by the distant whistle of locomotives pounding through the night, by the caravans leaving on the Golden Road to Samarkand, by quinqueremes of Nineveh from distant Ophir . . . Our grandchildren will likewise have their inspiration-among the equatorial stars. They will be able to look up at the night sky and watch the stately procession of the Ports of Earth-the strange new harbors where the ships of space make their planetfalls and their departures.

Now when we opened Disneyland, outer space was Buck Rogers.

We have at last glimpsed the surface of the fabled world, Titan, Saturn's largest moon and the greatest single expanse of unexplored territory remaining in the Solar System today.