There is no place for God in theories on the creation of the Universe, Professor Stephen Hawking has said.
He had previously argued belief in a creator was not incompatible with science but in a new book, he concludes the Big Bang was an inevitable consequence of the laws of physics.
The Grand Design, part serialised in the Times, says there is no need to invoke God to set the Universe going.
"Spontaneous creation is the reason there is something," he concluded.
In his new book, an extract of which appears in the Times, Britain's most famous physicist sets out to contest Sir Isaac Newton's belief that the universe must have been designed by God as it could not have sprung out of chaos.