Tim Burton

I started to do stop-motion when I was a kid. You take a Super 8 and make some models, and move, click, move, click. All that. I love all forms of animation, but there is something unique and special to stop-motion: it's more real and the set is lit like a set. But I think it's also a kind of lonely and dark thing to want to do.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.