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Georges Lemaître proposed the universe's expansion from a single point in 1927. His calculations were supported by Edwin Hubble's observations in 1929. Fred Hoyle (an opponent) coined the term "Big Bang" in 1949. The event itself is estimated to have occurred 13.73 billion years ago.

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How is the big bang theory is an example od scienctific theory?

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Did ptolemy use the big bang theory?

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What are constellations of the big bang theory?

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When was Penny - The Big Bang Theory - created?

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What is the boss' name in The Big Bang Theory?

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