Religion is proof that something can come from nothing. The mistake is in presuming that this something amounts to anything more than speculation until such time as it is shown to be anything more than just that, speculation, at which time it ceases to be . . . religion.
Such is the presumption that the universe has a centre when by definition the universe knows no bounds from which to derive a centre. It is in fact, everything, including all that it ever was and ever will be.
Where (and when) did the big bang actually take place? It is still taking place now, here, there, and everywhere, around us and within us. It had no beginning in that it was itself the beginning of that which ensued and all that exists, seen and unseen, past, present and future.
Where is the centre of the universe . . . Where is north from the North Pole?