After four years of research in partnership with over twenty scientists and esteemed experts, this book explores one of the most significant questions we face: the existence or non-existence of a creator God. For more than four centuries, the scientific discoveries of Copernicus, Galileo, Darwin, and Freud created the impression that we could explain the workings of the Universe without the idea of a creator--God. By the beginning of the twentieth century, materialism had become the dominant theory of the time. And yet, with unexpected and astonishing force, the pendulum of science has swung back in the other direction, owing to a rapid succession of discoveries: the theory of relativity; quantum mechanics; the Big Bang; the theories of expansion, heat death, and fine-tuning of the universe. This newly acquired knowledge has upended the certainties of the twentieth century collective consciousness.