What is the Big Bang theory?

The universe began dense and hot then expanded.

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  1. Stars are made of fire
  2. The universe began dense and hot then expanded ✔
  3. Earth formed from a volcano

Why: The Big Bang describes the universe starting extremely dense and hot, then expanding over billions of years.

Huh, didn't know that: The Big Bang describes the universe starting extremely dense and hot, then expanding over billions of years.

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The Big Bang was a big start to everything!
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References

Answer: The universe began dense and hot then expanded. The Big Bang describes the universe starting extremely dense and hot, then expanding over billions of years.

  1. Astronomy en.wikipedia.org/wiki/Astronomy
    the concept that the universe begin extremely dense and hot, then expanded over the course of 13.8 billion years
    Checked 2026-11-07.

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