Recently religious apologists have taken to harping on the question “How can something come from nothing?” because they think that science cannot explain how the universe came into existence. Of course, their own answer that “God must have done it!” is not an answer at all since it merely shifts the problem to that of how god could come into being from nothing.
Stephen Hawking has recently published a book that says that we can indeed understand how the universe came into being without invoking god. The idea itself has been known for sometime but when Hawking says it, it generates a lot of media attention. Cosmologist Sean Carroll explains Hawking’s ideas in a three-minute video.
In short, science has not proved that there is no god (because such proofs are impossible) but has shown is there is no need for god.