What Transpired 600 Million Years After the Big Bang?

Explore the reionization epoch and the formation of the first stars 600 million years post-Big Bang.

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600 million years after the Big Bang, the universe experienced a period known as the reionization epoch. During this time, the first stars and galaxies formed, emitting light and radiation that ionized hydrogen atoms, transforming the universe from an opaque fog into the clear, starry cosmos we observe today.

FAQs & Answers

  1. What is the reionization epoch? The reionization epoch is a period in the universe's history, approximately 600 million years after the Big Bang, when the first stars and galaxies formed.
  2. How did the universe change after the Big Bang? After the Big Bang, the universe transitioned from being opaque to clear during the reionization epoch, allowing light from stars to be observed.
  3. What role did the first stars play in the universe? The first stars helped to ionize hydrogen atoms, which cleared the universe of fog and made light travel freely across space.
  4. When did the first galaxies form? The first galaxies began to form during the reionization epoch, around 600 million years after the Big Bang.

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