Monsignor Georges Henri Joseph Edouard Lemaître (17 July 1894 - 20 June 1966) was a Belgian priest, astronomer and professor of physics at the Catholic University of Louvain. He sometimes used the title Abbé or Monseigneur. Lemaître proposed what became known as the Big Bang theory of the origin of the Universe, which he called his 'hypothesis of the primeval atom'. Read more