Kip Thorne

Kip Stephen Thorne is an American theoretical physicist, known for his prolific contributions in gravitational physics and astrophysics and for having trained a generation of scientists. A longtime friend and colleague of Stephen Hawking and Carl Sagan, he was the Feynman Professor of Theoretical Physics at the California Institute of Technology until 2009 and one of the world's leading experts on the astrophysical implications of Einstein's general theory of relativity. He continues to do scientific research and is also writing a film.