

One of the things I did when I wrote the book is I bought a big lunar globe … And the amount of time that I spent trying to work out how long it would take to get from A to B, and how fast the day/night terminator would move across the moon - it's quite incredible. That's one of those things that I might have exaggerated slightly for effect, because I don't know whether it happens all the time, but it certainly has been noted by various astronauts. It's a phenomenon where the day-night terminator crosses the moon, there's such a dichotomy in temperature range that dust is propelled into the air. That's something most people don't know about. And the dust clouds - I found them rather fascinating. I thought that was a fantastic idea for a moon base - an entire moon city, in my book, is a sealed-over crater.

I read about a proposed lunar base, which was a covered-over crater. I immersed myself in the geography and the logistics of living on the moon. O'Neill: I was determined to do as scientifically accurate as I could manage, so I brought the same discipline that I brought to my historical novels, dozens and dozens of books. : How did you incorporate research and the science of the moon into your narrative?
