Georges Lemaître, a Belgian mathematician and Catholic priest, proposed the Cosmic Egg theory in 1927, which was later confirmed by Edwin Hubble’s discovery of galaxies receding at high speed in 1929, leading to the Big Bang theory.
Edwin Hubble usually gets top marks for the Big Bang theory, which suggests that the universe was born in a massive explosion some 13.8 billion years ago. According to the Big Bang theory, all matter that exists now came from this catastrophic expansion, and most scientists believe that the expansion of the universe continues today. The first scientist with this intergalactic vision was actually Georges Lemaître, a Belgian mathematician and Catholic priest who called his hypothesis the Cosmic Egg in 1927. In 1929 at Mt. The Wilson Observatory in California, Hubble, unaware of Lemaître’s writings, discovered that the galaxies were receding at high speed, essentially confirming Lemaître’s theory with a certain degree of observational certainty.
The day that started with a bang:
Lemaître described the beginning of the universe as a shower of fireworks, likening galaxies to burning embers that spread in a growing sphere from the center of the explosion.
He believed this explosion of a “primordial atom” to be the beginning of time, occurring on what he called “a day without yesterday.”
Hubble has received the lion’s share of the credit, though. Scientists speak in terms of Hubble’s Law and its description of matter flowing from the Big Bang is known as the Hubble Flow.
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