I think a lot of the American people feel more than a little disappointed that the high-water mark for human exploration was 1969. The dream of human space travel has almost died for a lot of people.
The space station is the most unique laboratory we've ever built. The reason we have it is to do research on materials, people, medical matters, pharmaceuticals - the possibilities are nearly endless.
I would love to set foot on another planet - lunar or Mars or somewhere.
If we drive down the cost of transportation in space, we can do great things.
The era during which only governments could put hardware on the Moon is coming to an end. There are 26 private teams competing for the $30 million Google Lunar X-Prize - to be awarded for sending a robotic spacecraft to this nearby world that can roam at least 500 meters, and send back data such as a photo.
I read 'The High Frontier' in high school. I read it multiple times, and I was already primed. As soon as I read it, it made sense to me. It seemed very clear that planetary surfaces were not the right place for an expanding civilization inside our solar system.
I think it's like that for people who don't remember 1969 first-hand. It's that sense of 'old hat.' Of 'been there, done that.' Space shuttles, space stations, communications satellites, GPS - they're all part of our everyday, taken-for-granted world in 2009, not part of an incredible odyssey.
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.
Would offering the Mars Prize damage NASA? I don't think so.
Science fiction was rocket-mad for about 40 years until aerospace hit a brick wall about 1970. I would not write off space colonisation or exploration completely, but we are profoundly ill adapted for going boldly into outer space.
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.
A zero-gravity flight is a first step toward space travel.
We all have our levels of risk tolerance. People who have decided they want to go to space are going to go.
There's going to be space travel at some point.
When I was 11, I went to space camp at the Space Center in Texas, near where I grew up. There, I met video-game-industry pioneer Richard Garriott, better known to gamers everywhere as 'Ultima' creator Lord British.
We'll continue our quest in space. There will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. Nothing ends here – our hopes and our journeys continue.
Televised speech following the loss of the space shuttle Challenger.
Land on Mars, a round-trip ticket - half a million dollars. It can be done.
Virgin Galactic, which will be operating SpaceShipTwo, will be only one of several spacelines. The competitors for Virgin include the Russians, Bezos's Blue Origin, and possibly Rocketplane Kistler. And likely a couple of others who are smart enough not to tell people what they are doing!
When I was younger, humans went to the moon when I was about 4 years old, and I imagined that as I got older and became an adult that traveling in space was going to be fairly common and something that we all did. So I grew up believing that I'll be an astronaut just like these guys were that were going to the moon.
I am a spacer. It is what and who I am. It is my cause and my life. I am not an enthusiast, a fan, or supporter. It is what I exist to do here on Earth. And there are many of us; some, like Elon Musk, are very high profile.
We need affordable space travel to inspire our youth, to let them know that they can experience their dreams, can set significant goals and be in a position to lead all of us to future progress in exploration, discovery and fun. Thanks to the X Prize for the inspiration.
We've gotta reinvest in space travel. We should've never left the moon.
Over the past 50 years we got versions of X-ray specs and space vacations, and even death rays. But the X-ray specs don't fit on your face - they're big things that screen your luggage for guns. Space vacations are real, but they cost $20 million. We have death rays, but you have to be a triple Ph.D. to play with them.
The Space Program is an investment of the nation’s future…. Humans will not be confined to this planet forever.
Space tourism is God's way of telling you you aren't spending enough on lap dances, baccarat and cocaine.