When I first looked back at the Earth, standing on the Moon, I cried.
Orbiting Earth in the spaceship, I saw how beautiful our planet is. People, let us preserve and increase this beauty, not destroy it!
Mars has been flown by, orbited, smacked into, radar examined, and rocketed onto, as well as bounced upon, rolled over, shoveled, drilled into, baked and even blasted. Still to come: Mars being stepped on.
Mars is there, waiting to be reached.
Sometimes you have to go up really high to understand how small you really are.
If God wanted man to become a spacefaring species, he would have given man a moon.
The Moon is the first milestone on the road to the stars.
I think of space not as the final frontier but as the next frontier. Not as something to be conquered but to be explored.
Earth: mostly harmless.
I’m sure the universe is full of intelligent life. It’s just been too intelligent to come here.
The Universe is a grand book which cannot be read until one first learns to comprehend the language and becomes familiar with the characters in which it is composed. It is written in the language of mathematics.
May the Force be with you.
There’s a starman waiting in the sky, he’d like to come and meet us, but he thinks he’d blow our minds.
Ground control to Major Tom.
There is enough energy in a single cubic meter of space to boil all the oceans in the world.
As I hurtled through space, one thought kept crossing my mind – every part of this rocket was supplied by the lowest bidder.
I suppose the one quality in an astronaut more powerful than any other is curiosity. They have to get some place nobody’s ever been.
Humans need to be a multiplanet species.
Every mode of transport that we use – whether it’s planes, trains, automobiles, bikes, horses – is reusable, but not rockets. So we must solve this problem in order to become a space-faring civilization.
It’s a fixer-upper of a planet but we could make it work.