There are always door openings. And gradually, it accumulates. The opportunities open up in front of you.

I think I need to continue to think and plan and marry all of the different things that we could do that make transportation in space from the earth to the space station, from the earth to the moon to space stations around the moon to visiting an asteroid.

I think the public needs to be reminded just how much inspiration and intention was given throughout the world to be bold, to send human beings to the moon in the '60s and the '70s. It's important now to bring together the nations that weren't able to do it then and help them do it. We need to move forward.

Weve got to go [back to the moon]. But we dont want to stay too long. ... The ultimate goal is Mars.

We need to have people up there who can communicate what it feels like, not just pilots and engineers.

Mars could very well be a staging location for the resources of the asteroid belt. We have to learn how to get a payback somewhere, but it's beyond Mars that the real payoff will come from minerals.

I am definitely not rich.