Donald A. Wollheim Quotes

Man must at all costs overcome the Earth's gravity and have, in reserve, the space at least of the Solar System.

I've put a lot of my life into making it possible to fly in space at all.

The rockets... can be built so powerfully that they could be capable of carrying a man aloft.

It seems that 'rocket scientist' is a job category that's here for the long haul, like 'mortician.' But all this activity masks an important point: rockets are not a terribly efficient way to lift things into space.

The years of space flight since the orbiting of Sputnik I back in 1957 had produced many fascinating results, but they had also brought a realization of the many problems that surrounded the use of rockets for space flight.

Man will not always stay on Earth; the pursuit of light and space will lead him to penetrate the bounds of the atmosphere, timidly at first, but in the end to conquer the whole of solar space.

The Exploration of Cosmic Space by Means of Reaction Devices

Once you get into space, you can really unleash a lot of creativity, but the launch itself? I have been through all of the creative ways, and believe me, chemical rockets are the best.

It would take six months to get to Mars if you go there slowly, with optimal energy cost. Then it would take eighteen months for the planets to realign. Then it would take six months to get back, though I can see getting the travel time down to three months pretty quickly if America has the will.

I've always been interested in the idea of space exploration. When I was younger it was just a dream, but the theory of rockets being able to travel through space was very much alive. I found it very exciting.

If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we're ever likely to do that is by going into space.

We do need different types of propulsion to get to Mars. I wrote one of the first Ph.D. theses on that in the 1960s.

We will build new ships to carry man forward into the universe, to gain a new foothold on the moon and to prepare for new journeys to the worlds beyond our own.

I study orbital dynamics as a hobby. My idea of a good time is sitting down and drawing on that knowledge to imagine a space mission from beginning to end, getting as many details right as I can.

There's going to be space travel at some point.

Planets look about the same here as they do to you on the Earth because we really aren't that much closer. Our home, the International Space Station, orbits around the Earth at about 200 miles.

Space travel for everyone is the next frontier in the human experience.

The 20th Century was the century of Aviation and the century of Globalization. The next century will be the century of Space.

I watched the moon landing as a boy, and I thought that was the most exciting thing ever, going into space, orbiting Earth and exploring other planets. That looked fantastic.

I've been lucky enough to fly to space twice.

Mankind will not forever remain on Earth but, in the pursuit of light and space, will first timidly emerge from the bounds of the atmosphere and then advance until he has conquered the whole of circumsolar space.

I don't think we're going to build a 50-person spacecraft or a 100-person spacecraft.

Point-to-point transit via low orbit could dramatically speed up international flights, connecting the world even further. And safe, consistent space travel opens up the possibility of commercial space stations, trips to the moon and exploration beyond.

It's our destiny to explore. It's our destiny to be a space-faring nation.

My vision is for a fully reusable rocket transport system between Earth and Mars that is able to re-fuel on Mars - this is very important - so you don't have to carry the return fuel when you go there.