Dr Paul Parsons is a regular contributor to Nature, New Scientist and the Daily Telegraph. He frequently appears on BBC radio and his television credits include Richard & Judy and BBC Breakfast. He was formerly editor of the BBC's award-winning science and technology magazine Focus. His book The Science of Doctor Who was longlisted for the 2007 Royal Society Prize for Science Books.
Gail Dixon is a journalist and editor. She recently co-authored 3-minute Hawking, the most up-to-date book on the greatest living theoretical physicist. She has also worked as a commissioning editor for BBC Focus magazine.