Christophe GalfardChristophe Galfard holds a Ph.D. in theoretical physics from Cambridge University, where he was Professor Stephen Hawking's graduate student from 2000 to 2006, researching the so-called black hole information paradox and he co-authored George’s Seret Key to the Universe with Stephen Hawking and his daughter Lucy Hawking. His book, The Universe in Your Hand, has been translated into over twenty different languages. Read More Read Less