They're all the same thing - space walks. ... It's cool, but it's a little scary if you worry about losing your grip and floating away from the space station. And also, physically, it's the hardest work we do.

Thanks for a great fireworks show. We had a wonderful view.

You know, from the outside, this is a darn impressive spacecraft.

Greg really is a full member of the crew. We look at who is busy with tasks, and who has free time that's convenient. And if I fall in that situation, then I'm the one to make lunch.