We (the DOE) are poisoning our people in the name of national security.

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.

I am a stranger. I come in peace. Take me to your leader and there will be a massive reward for you in eternity.

The moment of twilight is simply beautiful.

Because now, you know, it's going to be a number of years yet before we have our own new boosters and new spacecraft to go to our own International Space Station and proceed with all the research that we spent $100 billion putting up there to give us that research capability for the future for people right here on Earth.

I think we're a long ways from really putting colonies of people out there who would live their whole lives out there in space. I don't see that happening for quite some time.

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.