I think if I had to choose, I would rather have gravity instead of zero gravity. It's fun for a while, but I'd rather live on Earth.

It's amazing to see the Earth in its glory down there.

It's much easier for me to sleep in space than it is back home. We sleep in a cabin, and you can float inside.

When the guys come back in from the spacewalk, there really is a distinct smell of space; it's something I will never forget.

A lot of scientists on Earth think of things that they could do in zero g. Things like the way metals cure, for example, and the way fluids react in space can tell us a lot about some of the unknowns we have on Earth.

Anytime I float by a window, I can tell whether the outside is lit or if it's dark outside. When we're working it's just day for us with the lights on inside.

I took a Russian class at Notre Dame. Never in my wildest dreams did I think I would fly someday in a Russian spacecraft with two cosmonauts, speaking only Russian.

Space is dark but, of course, when we're on the sun side of the Earth, we're in full illumination and we have all the reflection of the Earth below us, beautiful blue Earth and we're in daylight. Only on the back side, opposite side of the sun, it seems like night to us, too.

We spend our spare time taking care of little things. I can watch a little bit of college and professional football if I want to... Our favorite pastime is trying to take pictures of our hometowns from space.

Well, the coolest thing I have seen so far, in terms of, like, me being an astronaut and seeing something unusual, was the rendezvous, the docking of a Progress spaceship.