What is the History of the Big Bang Theory?

Explore the origins and evolution of the Big Bang theory, from Lemaître to Penzias and Wilson.

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The Big Bang theory originates from the early 20th century when Georges Lemaître proposed in 1927 that the universe is expanding. This idea was supported by Edwin Hubble's observations in 1929, showing galaxies moving away from us. By 1965, the discovery of the cosmic microwave background radiation by Arno Penzias and Robert Wilson provided substantial evidence. Today, the Big Bang theory remains the leading explanation for the universe's origin, evolving through successive scientific discoveries.

FAQs & Answers

  1. Who proposed the Big Bang theory? The Big Bang theory was first proposed by Georges Lemaître in 1927.
  2. What evidence supports the Big Bang theory? Key evidence includes Edwin Hubble's observations and the discovery of cosmic microwave background radiation.
  3. How has the Big Bang theory evolved? The theory has evolved through successive scientific discoveries, continuously refining our understanding of the universe's origin.
  4. What is cosmic microwave background radiation? It is the afterglow of the Big Bang, discovered by Arno Penzias and Robert Wilson in 1965, providing evidence for the theory.

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