Although you’ve just written a book about alien life, you’ve got three young children. Has that made you reassess life in general?
I think a new baby makes you reassess a lot of things in your life, from home furnishings right on up to the existence of God. But the reason for writing the book – which was started three or four years ago – was to continue from where I left off with my first book, It’s Not Rocket Science.
I found that I was fascinated by biology and the