That's what Hubble can do for us. It can tell us whether the universe is expanding forever or if one day it's going to come back together.

And, that's what I truly believe that we're doing when we're advancing scientific knowledge is we're someday making the world better. Not only for our children, but for all people after that.

And then, when I thought about joining the Air Force, flying seemed like a natural extension of the motorcycling experience. You're going faster, higher. You're operating a machine that's a lot more powerful than you are.

I see it as one of my jobs to make sure that, it sounds ridiculous, but to make sure the folks are eating, make sure folks are getting enough fluids, make sure folks are, you know, comfortable in the orbiter.

And, one thing I definitely enjoyed personally, from a selfish point of view, was exploration and going to places that I had never been to before and learning, you know, meeting the people and getting to know, new sights and sounds, etc.

And, all these things need to be coordinated; so we all need to work together, have timers going and everything so we're all coordinated and get this piece of orchestration done.

I consider myself to be very fortunate in my career, my timing has worked out.