Explain big bang theory with pics!
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The Big Bang theory proposes that the universe began as an extremely hot and dense dot only a few millimeters wide. It since grew over 13.7 billion years into the vast and cooler expanding cosmos that presently exists. ... It took quite a bit more than seven days to create the universe as we know it today
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In short, the Big Bang hypothesis states that all of the current and past matter in the Universe came into existence at the same time, roughly 13.8 billion years ago. At this time, all matter was compacted into a very small ball with infinite density and intense heat called a Singularity.
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