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.

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.

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.

So, we have to get up and get pumped up for each day.

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.

Well, for me it really wasn't a case of deciding to be an astronaut.

You know, piloting really isn't my hobby. And, it's probably not something I'd do in my spare time if I could do whatever I wanted to do. But, I'll tell you: if you've got to make a living, it's a great way to make a living!