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The Big Bang is a scientific theory that describes the origin and evolution of the universe. It suggests that the universe began as a single point of infinite density and temperature, and then expanded rapidly, cooling and becoming less dense over time. According to the Big Bang theory, the universe is approximately 13.8 billion years old. At the beginning of the universe, all the matter and energy were concentrated in a single point, known as a singularity. This singularity was infinitely hot a
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