Where did the Big Bang take place?
The Big Bang is the prevailing model for the creation of the universe and everything in it, but how long ago did it happen?
Asked by: Harry Gray, Halifax
As the whole Universe was created in the Big Bang 13.7 billion years ago, the explosion took place literally everywhere, rather than at any specific place. That's what cosmological theory predicts - and it's confirmed by the fact that the heat left over from the explosion is spread evenly over the entire sky, rather than being concentrated in one particular region.
Robert is a science writer and visiting professor of science at Aston University.