Georges Lemaitre

Georges Lemaître was a Belgian priest and scientist who pioneered ideas about the universe's origin. In the 1920s, he proposed that the universe began from a "primeval atom"—a dense, hot point—leading to what we now call the Big Bang theory. His work explained how galaxies are moving away from each other, indicating the universe is expanding. Lemaître's insights bridged physics and cosmology, transforming our understanding of the universe's birth and evolution. His contributions are fundamental to modern cosmology and our grasp of the universe's origin.