|Image courtesy Sunday Brunch, C4|
Good question. When I was 8, my dad bought me 'Dr H. C. King's Book of Astronomy.' I don't know why he bought me that book. But it caught my imagination. Later, he bought me a small telescope. I used to poke it out of the window of our North London flat and observe the stars above the orange glow of the North Circular Road. I saw Jupiter's moons and the rings of Saturn. I began to realise I was living on a tiny mote of matter lost in a mind-bogglingly huge universe. And it awakened in me a desire, which I have never lost, to find out more and more about where it all came from and our place in it.
Why this book?
I was fascinated by the paradoxes of gravity. It was the first force to be discovered, yet today it is the least understood. It is a 'force' that keeps your feet on the ground yet, according to Einstein, no such force actually exists. It is the weakest force in the everyday world, yet it controls the ate of stars and galaxies and the universe as a whole. Gravity, to steal the words of Winston Churchill, is 'a riddle, wrapped in a mystery, inside an enigma.' And penetrating that enigma promises to answer the biggest questions in science: What is space? What is time? What is the universe? And where did it all come from?
I have just been asked to write a Ladybird book. If you remember, Ladybird used to produce those distinctive books for children on topics like 'Going to the dentist' or 'How aeroplanes work.' Well, Penguin revived the imprint a few years ago. They did a range of spoof books for adults [after copying the idea from an artist they sued for doing the same thing - Ed.], which were a publishing phenomenon. So, they have now decided to do an 'expert' series. Prince Charles did one on climate change. I'm chuffed to be doing one of the big bang.
What’s exciting you at the moment?
The fact that nothing fits. We have a model of the universe in which 95% of its mass is invisible - so-called dark matter and dark energy - and we have no idea what it is. We have two incredibly successful theories of physics - quantum theory and Einstein's theory of gravity - and they appear incompatible. All this makes it an incredible time to be alive. We are on the verge of a revolution in our picture of the universe. Someone is going to pull it all together. Someone whose name will become as well-known as Newton and Einstein. At least, I think so!