So, I decided that whatever I was, wanted to do with my life, it would have to do, it would have to have something to do with the exploration and doing new things.

You know, Scooter's going to do the first separation burn; I'm going to do the second separation burn.

There's been a tremendous amount of work that's been done that you can't see in Columbia.

Because when we're in space, my job is primarily getting us there and getting us back.

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.

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.