The moment of twilight is simply beautiful.

I think sometime we will go to Mars and I think we'll explore it with humans sometime, but I think it's really wise to do all the robotic exploration ahead of time and learn as much as possible. Once we have learned as much as possible with the robots, then that's the time to send people, and let them then continue the research that the robots have started.

America had an emphasis on the individual and so education became available for everyone.

Just because I'm 77 doesn't mean I don't have a dream.

As far as actually setting up colonies of people who would live their whole lives in space, I think we're a long ways from doing that yet, and I think we have many, many decades before we could be able to even consider something like that.

On K-12 education America has gone down, down, down compared to the other nations. It doesn't mean that we have gotten dumber. It just means that we have not advanced as fast in those areas as other nations have done, and we're way down right now.

You know, old folks can have dreams, too, as well as young folks, and then work toward them. And to have a dream like this come true for me is just a terrific experience.