Stephen Hawking book 'The Grand Design' out in September
Stephen Hawking hasn't had a major new work in nearly a decade. This September he'll release 'The Grand Design.'
New York — British physicist Stephen Hawking has co-authored a book that's due out in September.
The publisher said it's Hawking's first major new work in nearly a decade. His previous books include "A Brief History of Time."
In "The Grand Design," they examine evidence of "a unified theory" that can "describe and explain all the forces of nature."