However it happens, the end of the world will be a parochial little affair, unnoticed in the universe at large. The end of the universe itself is a matter of current debate among physicists, a debate that I recommend as providing a salutary, long-term, humbling perspective on human preoccupations and follies.More: Science explains the end of the world
I tend to agree with Dawkins. We are probably on the way to do away with ourselves nicely, as we have more and more power in our hands, with less and less reason to guide us. Let's hope he's wrong on this one.