Which description is considered most accurate regarding what actually happened during the Big Bang?
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Everything in the universe was concentrated in a single, small point which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.
Two galaxies collided causing an immense explosion as stars crashed into one another.
Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.
All matter emerged from a massive black hole at the center of the universe.