The Big Bang is a scientific theory which follows (explains) what we know about the world. It is a testable and falsifiable theory. Science does not claim to k

The Big Bang is a scientific theory which follows (explains) what we know about the world. It is a testable and falsifiable theory. Science does not claim to know what happened before the Big Bang, and does not even claim that the Big Bang is the only explanation: it is just a plausible enough theory that deserves consideration. And most importantly: the second that some experiment or observation contradicts the Big Bang theory, science will happily (literally) drop it. Which is not even remotely the same for religion: the second that a certain religious fact will be contradicted by experiments, religion will change its message to claim the same basic ideas, with a new discourse. EDIT: Regarding my last paragraph, I was suggesting that religion will adapt its discourse as soon as new knowledge is acquired by the race, but this obviously not the case. They more accurately follow the "fight, embrace and extend" principle, so it really takes them some time to accept new knowledge and adapt their discourse.