Question

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Q who gave big bang theory and how?


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Answer 1

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$<b>Here$is your answer


In 1927, the Belgian Catholic priest Georges Lemaître proposed an expanding model for the universe to explain the observed redshifts of spiral nebulae, and calculated the Hubble law. He based his theory on the work of Einstein and De Sitter, and independently derived Friedmann's equations for an expanding universe.


Georges Lemaître, (1894-1966), Belgian cosmologist, Catholic priest, and father of the Big Bang theory.


Lemaître himself also described his theory as "the Cosmic Egg exploding at the moment of the creation"; it became better known as the "Big Bang theory," a pejorative term coined during a 1949 BBC radio broadcast by the astronomer Fred Hoyle.



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Answer 2

Hey mate here is your answer...
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Georges Lemaître was who gave the big bang theory and Discovered the Expansion of the Universe. In 1927, Belgian priest and physicist Georges Lemaître made what is perhaps the greatest discovery in modern cosmology — our universe is expanding. Four years later, he proposed that the universe began with a “single quantum” — what we now call the big bang....

T.S ( ZAYER ).