Science and Religion is co-relation. Some words that are written in the bible can be prove by science. And some science explanation are written in the bible. But there are times that they are not exactly the same. Like what you are saying about the big bang. That theory is againts what is written in the bible. There are no things that when exploded are exactly circle that's why I didn't believe in that theory. Some atheist are believe in God. Why? When bad things came to atheist, the atheist are begging for God's help. I think Atheist exist because of some false belief and false religion. But in fact science is not a religion.