Georges Lemaitre

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Date of Birth July 17, 1894
Place of Birth Belgium
Date of Death Jun 20, 1966 (71)
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Georges Henri Joseph Édouard Lemaître was a Jesuit-educated Belgian Catholic priest, mathematician, astronomer, and professor of physics at the Catholic University of Louvain. He was the first to identify that the recession of nearby galaxies can be explained by a theory of an expanding universe, which was observationally confirmed soon afterwards by Edwin Hubble. He was the first to derive what is now known as Hubble's law, or the Hubble–Lemaître law, and made the first estimation of what is now called the Hubble constant, which he published in 1927, two years before Hubble's article. Lemaître also proposed what later became known as the "Big Bang theory" of the origin of the universe, initially calling it the "hypothesis of the primeval atom".

Born: July 17, 1894, Charleroi, Belgium
Died: June 20, 1966, Leuven, Belgium
Nationality: Belgian
Fields: Cosmology, Astrophysics, Mathematics
Institutions: Catholic University of Leuven, Catholic University of America
Alma mater: Catholic University of Louvain, St Edmund's House, Cambridge, Massachusetts Institute of Technology
Other academic advisors: Arthur Eddington (Cambridge), Harlow Shapley (MIT)
Known for: Theory of the expansion of the universe, Big Bang theory, Lemaître coordinates
Notable awards: Francqui Prize (1934), Eddington Medal (1953)

About Georges Lemaitre

Belgian scientist and religious leader who was a Roman Catholic priest and became the first person to propose the theory of the expansion of the Universe. He was also the first person to derive Hubble's law.

Before Fame

He studied civil engineering at the Université catholique de Louvain when he was 17 and served as an artillery officer in the Belgian army during World War I.


He received the Francqui Prize which was known as the highest Belgian scientific honor in 1934.

Family Life

He was raised with his family in Charleroi, Belgium.


Edwin Hubble was also a scientist around the same time he was and published his own velocity-distance relation theory.

Information related to Georges Lemaître

  • 'A Day Without Yesterday': Georges Lemaître & the Big Bang
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Latest information about Georges Lemaitre updated on October 30, 2020.

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