There is no God -- that's the conclusion of the celebrated physicist Stephen Hawking, whose final book is published Tuesday. The book, which was completed by his family after his death, presents ...

Stephen Hawking was a British theoretical physicist, cosmologist and author whose study and work on black holes and the universe made him one of the most recognisable figures in the field of science.

Stephen Hawking is remembered as one of the greatest minds in modern physics, but his personal story is far less well known.