Brian Cox, Ph.D., is Professor of Particle Physics at the University of Manchester. Dr. Cox is also a Royal Society research fellow and a researcher on the ATLAS experiment on the Large Hadron Collider in Switzerland. He is perhaps best known as a science broadcaster and host of the BBC's hugely popular Wonders series. He is the coauthor of three companion books to these series, which have become #1 Sunday Times bestsellers, as well as two narrative works of popular science, The Quantum Universe and Why Does E = mc2? In the 1990s he played keyboards for the UK pop band D: Ream. Andrew Cohen is head of the BBC Science Unit and the executive producer of the Discovery Science series Wonders of Life. He began his career in science broadcasting and has been responsible for a wide range of science documentaries, including Horizon, Wonders of the Solar System, Wonders of the Universe, and Stargazing Live. An honorary lecturer in life sciences at the University of Manchester, he lives in London with his wife and three children.