Lemaître, Abbé Georges Édouard

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Lemaître, Abbé Georges Édouard (1894–1966) Belgian astrophysicist who formulated the Big Bang theory for the origin of the Universe. He saw the origins of the universe as analogous to a radioactive atom, with all the energy and matter concentrated into a kernel that he called the ‘primeval atom’. Lemaître argued that an expanding Universe would have originated in the explosion of the ‘primeval atom’.