Origin+of+the+Universe

A Scientific Theory is a theory that explains scientific observations. A common misperception about the theory is that it describes the origin of the universe. That's not quite right. The big bang is an attempt to explain how the universe developed from a very tiny, dense state into what it is today. It doesn't attempt to explain what initiated the creation of the universe, or what came before the big bang or even what lies outside the universe. We have proof because very distant stars appear as redshifts. A redshift is a change in color when an object that emits light is moving away from the observer. It is called a redshift because it "shifts" to the "red" part of the spectrum. Stars are moving away from us in every direction, so we know that at one time the universe was smaller.