The Big Bang, the Universe Has a Beginning

All the observational evidence tells us that it actually happened. The radiation that's left over from the big bang, the cosmic microvive background radation has been detected. It's got a temperature of two point five to two point seven or so. Calvin lookat up what the actual amount is, thactual value is. So all theobservational evidence that we have at our disposal tells us that the universe had a beginning and at some point in time, most likely, it was concentrated into a single point.