In my whole life, I've never vomited from seeing something disgusting. Does it really even happen, outside of movies and TV? I believe it may be a myth.

Sharing a room with a cadaver is only mildly different from being in a room alone. They are the same sort of company as people across from you on subways or in airport lounges, there but not there. Your eyes keep going back to them, for lack of anything more interesting to look at, and then you feel bad for staring.

In my experience, the most staunchly held views are based on ignorance or accepted dogma, not carefully considered accumulations of facts. The more you expose the intricacies and realtities of the situation, the less clear-cut things become.

Yes, the money could be better spent on Earth. But would it? Since when has money saved by government redlining been spent on education and cancer research? It is always squandered. Let's squander some on Mars. Let's go out and play.

I very much was inspired by Bill Bryson. He does cover science, but more often, it's a mixture of science and travel, and whatever he happens to be writing about - Shakespeare, Australia, the United Kingdom, or when he covers science in 'A Short History Of Nearly Everything' - he has an incredible ability to be both entertaining and enlightening.

I've read plenty of amazing science pieces where the writers don't hang out in labs. I just have fun doing it. And I get rewarded for it; I get gushy, especially when kids tell me they expected to be bored by my books, but weren't.

You won't see me writing about particle physics, or even planetary geology, or chemistry. I practically failed chemistry, and if I had to write a book in any of those areas, I don't think it would go well.