What is the Most Compelling Evidence for the Big Bang Theory?

Explore the key evidence supporting the Big Bang Theory, including cosmic microwave background radiation and galaxy redshift.

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The best evidence of The Big Bang Theory includes the cosmic microwave background radiation, discovered by Penzias and Wilson in 1965. This radiation is the afterglow of the Big Bang, uniformly detected across the universe. Another strong evidence is the redshift of galaxies: as galaxies move away, their light shifts to the red end of the spectrum, indicating the universe's expansion, first observed by Edwin Hubble. These findings support the theory that the universe began from a singular, incredibly dense and hot state and has been expanding ever since.

FAQs & Answers

  1. What is the cosmic microwave background radiation? The cosmic microwave background radiation is the afterglow of the Big Bang, discovered in 1965, providing a crucial clue about the universe's origins.
  2. How does redshift support the Big Bang Theory? Redshift indicates that galaxies are moving away from us, suggesting that the universe is expanding, a key prediction of the Big Bang Theory.
  3. Who discovered the cosmic microwave background radiation? The cosmic microwave background radiation was discovered by Arno Penzias and Robert Wilson in 1965.
  4. What does Edwin Hubble's research contribute to cosmology? Edwin Hubble's observations of redshift in galaxies provided the first evidence of the universe's expansion, supporting the Big Bang Theory.

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