How Cosmic Background wave Radiation provides us Powerful Evidence for Big Bang ?
Yes, the previous poster is absolutely correct. Background radiation exists everywhere in the Universe, and that implies as we work backwards, that in the past there was more of it that’s since been absorbed by matter. If we calculate, based on how large the observable Universe is and how much energy there is currently, we can get a pretty good estimation of how much there was in the past and we realize that there was a time when an unimaginable amount of energy was produced and that, since this energy is distributed through the entire system, we can assume that the Universe was a lot smaller at the time, since that energy couldn’t possibly have enough time to permeate the entire Universe at it’s current size if it was always that size. In other words, cosmic background radiation implies there was an event in the distant past that produced energy on a level that has never been seen since and it also implies the Universe was a lot smaller in the past.
