http://www.newsweek.com/georges-lemaitre-big-bang-theory-google-doodle-1027613

Georges Henri Joseph Édouard Lemaître was a priest, physicist and astronomer whose controversial “cosmic egg” theory became the most prominent concept in cosmology—the Big Bang theory.

Now, on the scientist’s 124th birthday, Google has honored him with a Doodle. But who is Georges Lemaître and what were his most important ideas?