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Today, the consensus among scientists, astronomers and cosmologists is that the Universe as we know it was created in a massive explosion that not only created the majority of matter, but the physical laws that govern our ever-expanding cosmos. This is known as The Big Bang Theory.
exists and is an alternate of . The Big Bang Theory is the prevailing cosmological model that explains the early development of our Universe. Basically, it states that at one point the Universe existed in an extremely hot and dense state known as a singularity, which was composed entirely of energy.