Really. Where do you get your information from? If you said, "Ken Ham", try again.
Well, in fairness: Hawking believes dark matter makes up 90% of the universe, and we have no idea what dark matter is. But then, Hawkins has been useless ever since he found out the pope wasn’t scandalized by the Big Bang theory, and allowed his all-consuming need to disprove a First Cause to turn him into a hack.