30-second Theories: The 50 Most Thought-provoking Theories in Science
Paul Parsons is former editor of BBC Focus magazine. He has written for publications from the Telegraph to FHM. His The Science of Doctor Who (Icon) was longlisted for the 2007 Royal Society Prize. Martin Rees is Astronomer Royal, President of the Royal Society, and Professor of Cosmology and Astrophysics at Cambridge.