Chris Hadfield

The best simulator for spacewalking is underwater - it allows full visuals and body movement in 3D. Virtual reality is good, too, and has some advantages, like full Station simulation, not just part. Like all simulators, they have parts that are wrong and misleading: an important thing to remember when preparing for reality.

There are no wishy-washy astronauts. You don't get up there by being uncaring and blase. And whatever gave you the sense of tenacity and purpose to get that far in life is absolutely reaffirmed and deepened by the experience itself.

One place that I looked at a lot from space and which looks alluring is New Zealand, especially the North Island. It's a big broad valley with a river flowing through it, and you can see the wine-making dryness of the land.

I watch TV on my TV pretty exclusively. However, when I'm on that long flight between Los Angeles and New York, a great way to pass that time is to download movies on iTunes and watch them on my laptop.

After having done this whole slew of press for 'Big Love', now I'll have anxiety dreams for like a week and a half about all the stupid things I said. I can't even imagine being in front of the cameras all the time. I had a weird dream the other night that I was on 'Jersey Shore.'

As an astronaut, when you're getting ready to go out of that hatch, you know that's the pinnacle of both your career and your life. The view completely blows you away. The real challenge is getting past the excitement and getting focused and down to work.