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Questions about Georges Lemaître

Short answers, pulled from the story.

When did Georges Lemaître volunteer for the Belgian Army?

Georges Lemaître volunteered for the Belgian Army on the 7th of August 1914. He stood in uniform alongside his younger brother Jacques after Germany invaded their homeland.

Who ordained Georges Lemaître as a priest and when did this occur?

Cardinal Désiré-Joseph Mercier ordained Georges Lemaître as a priest on the 22nd of September 1923. This event marked a pivotal shift from engineering studies to theological and scientific pursuits.

What title did Georges Lemaître give to his 1927 report on the expanding universe?

Georges Lemaître published a report titled A homogeneous Universe of constant mass and growing radius accounting for the radial velocity of extragalactic nebulae in 1927. This document appeared in the Annals of the Scientific Society of Brussels which few astronomers outside Belgium read.

When did Georges Lemaître propose that the universe expanded from a single quantum he called the primeval atom?

In March 1931, Georges Lemaître proposed that the universe expanded from a single quantum he called the primeval atom. This idea appeared briefly in Nature before being presented publicly at a London colloquium on the 29th of September 1931.

Why did Georges Lemaître oppose Pope Pius XII linking Big Bang cosmology to creatio ex nihilo doctrine in 1951?

Georges Lemaître reportedly felt horror at this intervention mixing science directly with religious dogma. He argued Bible does not purport be textbook of science so old controversy vanishes once realized.

When was Hubble law renamed as Hubble-Lemaître law by the International Astronomical Union?

The International Astronomical Union voted 78% in October 2018 to rename Hubble law as Hubble-Lemaître law. Google celebrated his 124th birthday with a Doodle on the 17th of July 2018 honoring Belgian scientist.