Robert A. Heinlein Quotes

So we say, oh, my goodness; we think we've found another Earth-like planet. We will start trying to figure out how to get there. And I have this strong belief that whatever we think we can do, whatever we can dream, we can do.

I don't think the human race will survive the next thousand years, unless we spread into space.

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.

Humanity is not forever chained to this planet.

There are many in the field of cosmology, who believe as I do, that finding ways to travel great distances will be essential to keeping human kind alive in an aging universe.

The greatest gain from space travel consists in the extension of our knowledge. In a hundred years this newly won knowledge will pay huge and unexpected dividends.

We must move into the universe. Mankind must save itself. We must escape the danger of war and politics. We must become astronauts and go out into the universe and discover the God in ourselves.

I'd love to go into space again if there were a mission to Mars. I'd also love to go to a completely different planetary system, out of our solar system.

There is a potential to be a big explosion of what spaceflight is gonna mean to just an everyday person in the near future. I think it's very hopeful for our young people: all the exciting things that they could be doing in the future relative to space and space exploration.

It says something very deep about humans and our society, something very good about us, that we've invested our time and treasure in building a machine that can fly across three billion miles of space to explore the Pluto system.

Planet colonization is not a short term concern of mine. The physical limitations of space travel render it low on the list for me.

Humans having any kind of sporting chance against hostile alien invaders armed with superior technology - Good luck. If they're advanced enough to cross the enormous distances of interstellar space, they're advanced enough to wipe us out without breaking whatever in their physiology passes for a sweat.

My desire to contribute to the spaceflight team as we move forward in our exploration of space has only increased over the years.

We've let too much time go by. We've been busy with war instead of being busy with peace. And that's what space travel is all about. It's all about peace and exploration and wonder and beauty.

There's a certain romanticism associated with exploration of space, which is one of the major factors why we'll continue.

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

I think no matter where we go in space to me the important thing is not only getting there and getting back, but it's also doing research, because that opens up as a possibility with that new distance of travel in space.

Space-ships and time machines are no escape from the human condition.

The development of space technology, including space warfare today, is similar in its technological-industrial significance to the development of navies a hundred years ago.

We will never be an advanced civilization as long as rain showers can delay the launching of a space rocket.

The best thing about space travel is that it made it possible to go elsewhere.

We used to joke about canned men, putting people in a can and seeing how far you can send them and bring them back. That's not the purpose of this program... Space is a laboratory, and we go into it to work and learn the new.

We're not sane enough yet to enter space until we learn to live together in peace on Earth.

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 think that it's good for us to be able to travel in space and do research in space, and I emphasize the research, because space travel to me is far more than just seeing how far we can go.