what is mean by big bang
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The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now (and it could still be stretching).....♥️♥️♥️!!!!!
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the rapid expansion of matter from a state of extremely high density and temperature which according to current cosmological theories marked the origin of the universe.
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