Stephen Hawking says Universe created from "nothing".Speaking to a sold out crowd at the Berkeley Physics Oppenheimer Lecture on March 13 2007, Hawking said that he now believes the universe spontaneously popped into existence from "nothing" without violating the laws of physics (no god(s) required). He said more work is needed to prove this but we have time because 'Eternity is a very long time, especially towards the end.'
Please note that "nothing" to a theoretical physicist does not literally mean nothing.