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

And, obviously as a, as one who likes to travel around myself a lot, I think the Earth is a beautiful place. And, I'm looking forward to some new perspectives.

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

I could do exploration in this particular career field, and it was a goal that, even if I didn't reach it, it was so high it seemed almost impossible, but even if I didn't reach it, I would still have a good time and a very satisfying career.

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.

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.

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