By any measure, Stephen Hawking is one of the most famous and influential figures in modern science. For thirty years, he served as Lucasian Professor of Mathematics at the University of Cambridge, and his career before and after his decades in that post is the stuff of scientific legend. He is also probably the longest-living person ever to be diagnosed with amyotrophic lateral sclerosis [ALS], and the very fact that he has been productive since that diagnosis at age 21 is a testimony to his sense of personal mission and sheer determination.

Professor Hawking is out with a new book, and in The Grand Design, he, along with co-author Leonard Mlodinow, now presses his case against God — or at least against any role for God in the origin of the universe or the beginning of time.

Asking the most basic questions of the universe’s existence, Hawking and Mlodinow assert: “Some would claim the answer to these questions is that there is a God who chose to create the universe that way. It is reasonable to ask who or what created the universe, but if the answer is God, then the question has merely been deflected to that of who created God. In this view it is accepted that some entity exists that needs no creator, and that entity is called God. This is known as the first-cause argument for the existence of God. We claim, however, that it is possible to answer these questions purely within the realm of science, and without invoking any divine beings.”