Christophe Galfard
Theoretical physicist
Christophe Galfard is a theoretical physicist turned international pop-science bestselling author based in Paris. He co-authored "George's Secret Key to the Universe" with Stephen Hawking and his daughter Lucy Hawking. Galfard's most recent book, "The Universe in Your Hand: A Journey Through Space, Time, and Beyond," has been translated into over 20 languages.
