Christophe Galfard
Christophe Galfard (born 1976 in Paris, France) is a French physicist and writer. Biography 
After graduating from the École Centrale Paris in 1999 and specializing in theoretical physics, he then obtained a PhD at the University of Cambridge under the supervision of Stephen Hawking. He co-published with the latter and Lucy Hawking George and the Secrets of the Universe in 2007. He then published the Prince of Clouds novel trilogy with Le Blueberry (2009), Le Matin des trois soleils (2012) and La Colère du ciel et du vent (2013). In 2015, he published The Universe in Your Hand. References 

1976 births
École Centrale Paris alumni
21st-century French writers
21st-century French physicists
Living people