Exploring the Universe: What Happened 100 Million Years After the Big Bang?

Discover the first stars and the end of the Cosmic Dark Ages that shaped our universe.

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Around 100 million years after the Big Bang, the first stars began to form. These stars created light and heat, marking the end of the Cosmic Dark Ages. This period is known as the Epoch of Reionization when the universe began to evolve into its current state.

FAQs & Answers

  1. What marks the end of the Cosmic Dark Ages? The end of the Cosmic Dark Ages is marked by the formation of the first stars which began to illuminate the universe.
  2. What is the Epoch of Reionization? The Epoch of Reionization is a period in the universe's history when the first stars formed and reionized the hydrogen gas, contributing to the evolution of the universe.
  3. How did stars form after the Big Bang? Stars began to form from clouds of hydrogen and helium gas that cooled and clumped together due to gravity in the early universe.
  4. Why is the Big Bang significant? The Big Bang is significant as it marks the beginning of the universe, leading to the formation of all matter and energy we observe today.

Watch More

If you enjoyed this exploration of cosmic history, check out our other videos on the formation of galaxies and the life cycle of stars to deepen your understanding of the universe.

  1. 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.
  2. What Occurred 200 Million Years After the Big Bang? Insights into Cosmic Dawn Explore the pivotal Cosmic Dawn that followed the Big Bang, leading to the birth of stars and galaxies in our universe.
  3. What Occurred 1 Billion Years After the Big Bang? Explore key events in the universe's evolution 1 billion years after the Big Bang, including galaxy formation and the first stars.
  4. Understanding the Dark Age After the Big Bang Explore the fascinating Dark Age after the Big Bang, a critical period in the Universe's evolution before the first stars emerged.
  5. Understanding Recombination: The Formation of Hydrogen Atoms 380,000 Years After the Big Bang Discover what occurred 380,000 years post-Big Bang and learn about hydrogen atoms and Cosmic Microwave Background radiation.
  6. Understanding the Universe: 400,000 Years After the Big Bang Explore what happened 400,000 years after the Big Bang, including the formation of hydrogen and the Cosmic Microwave Background.