Georges Lemaître
Georges Henri Joseph Édouard Lemaître ( ; ; 17 July 1894 – 20 June 1966) was a Belgian
Catholic priest,
theoretical physicist,
mathematician,
astronomer, and professor of
physics at the
Catholic University of Louvain. He was the first to theorize that the recession of nearby galaxies can be explained by an
expanding universe, which was observationally confirmed soon afterwards by
Edwin Hubble. He first derived "Hubble's law", now called the
Hubble–Lemaître law by the
IAU, and published the first estimation of the
Hubble constant in 1927, two years before Hubble's article. Lemaître also proposed the "
Big Bang theory" of the origin of the
universe, calling it the "hypothesis of the
primeval atom", and later calling it "the beginning of the world".
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