Science says the Universe expanded from a singularity 14 billion years ago.

Where did you read that gem? Daily M*ail? Science says nothing. People employ the scientific method to reach conclusions from evidence. Most evidence points to the Big Bang as the most likely explanation for the origin of the universe. But there are gaps. No-one of scientific leaning is saying that there was a Big Bang. We're saying that the evidence points that way. That's the difference 'twixt us and the God Squad. We don't deal in certainties.