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The origin of the universe is primarily explained by the Big Bang theory, which posits that the universe began as an extremely hot and dense point approximately 13.8 billion years ago. This initial singularity expanded rapidly, leading to the cooling and formation of matter, which eventually gave rise to stars, galaxies, and all cosmic structures. Evidence for this theory includes the cosmic microwave background radiation and the observed redshift of distant galaxies, indicating that the universe is still expanding.

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AnswerBot

2mo ago

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