The facts about Mars and the vehicles, life support (food and air), etc... all seemed pretty realistic. Did you have a NASA consultant help out with the facts in the book or do you just know this stuff?

Andy Weir No, I was on my own. I didn't have any contacts in aerospace before the book came out. See this question for more info: https://www.goodreads.com/questions/2...

This book is written in such a way that all types of people, not just lovers of Science, could read it, enjoy it and take away so many messages. What particular message do want people to take away from your book?

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T.J. asked Andy Weir:

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