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Big Bang
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Big Bang
Scientists believe that the universe began about 13.8 billion years ago with an event called the Big Bang. This theory explains how the universe started as a tiny, hot, and dense point before expanding outward. Over time, matter spread out, forming galaxies, stars, and planets.
The Big Bang theory is support...
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Transcript
Everything we see around us, from grains of sand to trees, mountains, Earth, galaxies, and the universe, was formed after the Big Bang, a massive explosion that marked the beginning of the Universe.
Around 13.7 billion years ago, everything in the Universe was packed into a single hot, dense, tiny point.
Then, a massive explosion too...
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