What is the Big Bang Theory? A Brief Overview

Discover the Big Bang theory, the origin of the universe, and supporting evidence from cosmic background radiation.

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The Big Bang theory posits that the universe began from an extremely dense and hot state about 13.8 billion years ago and has been expanding ever since. This theory is supported by cosmic background radiation and the redshift of distant galaxies, explaining the origin and development of the cosmos.

FAQs & Answers

  1. What evidence supports the Big Bang theory? Evidence for the Big Bang theory includes cosmic background radiation and the observation of redshift in distant galaxies.
  2. How old is the universe according to the Big Bang theory? The Big Bang theory suggests that the universe is approximately 13.8 billion years old.
  3. What are the main concepts of the Big Bang theory? The main concepts include the rapid expansion of the universe and its evolution from a hot, dense state.
  4. What is cosmic background radiation? Cosmic background radiation is the afterglow of the Big Bang, providing key evidence for the theory.

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For more insights on the universe, check out our videos on cosmic evolution and the life cycles of stars to deepen your understanding of these fascinating topics.

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