The universe was not created by God, scientist Stephen Hawking has said in his new book.
Professor Hawking believes the laws of physics were behind the Big Bang instead, in a challenge to traditional religious beliefs. /
Professor Hawking has warned that unless the human race colonises space within two centuries it will disappear forever.
He said that our only chance for long-term survival is to move away from Earth and begin to inhabit far-flung planets.