Now you're coming back to Earth, and things are getting more and more dynamic.

Now, I've never flown in space; but the folks who have say that on landing day, you know, you've just spent maybe a week and a half, sometimes two weeks in orbit and you're used to the things happening slowly in space.

I worked for some very good people who have helped me along the way and actually enabled me to have the opportunity to be selected to join the Astronaut Corps.

Now you're coming back to Earth, and things are getting more and more dynamic.

Those folks out in the space suits are going to be getting beat up.

And, so I set my goals on astronaut because, as a military aviator, it was, I considered that to be about the peak of a flying career.

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.