Stephen Hawking is one of the most famous physicists in the world.
He is especially known as an expert on the nature of the universe
He is an expert on black holes and what might be on the other side of them
He is disabled and suffers from motor neurone disease
He has a computer controlled voice box which allows him to communicate
He is an atheist meaning that he does not believe in the existence of God
Hawking believes that there are an infinite number of universes and not just this one that we live in