Yes, science has a theory as to what caused the Big Bang and the theory makes predictions that should be observable and testable still today. So, I don't want to hear theists claim that "scientists have no idea what came before the Big Bang" anymore. If you want to challenge the validity of the theory, here it is complete with all the supporting math. Break out your slide rule and microwave detector and have at it. The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang - Justin Khoury (Princeton), Burt A. Ovrut (Univ of Pennsylvania), Paul J. Steinhardt (Princeton), Neil Turok (Cambridge) Wanna kill these ads? We can help!