The widely accepted theory about the origin of our universe centres on the event now referred to as the ‘Big Bang.’ The basis of this theory is the observation that galaxies are moving away at great speed from one another. It was as if they were forced into movement by an ancient explosive force.
Georges Lemaitre, a Belgian priest first came up with the Big Bang Theory in the 1920s. He suggested that a single primordial atom exploded to create the universe. Hubble’s observations substantiated Lemaitre’s theory. In addition to this, cosmic microwave radiations discovered by Arno Penzias and Robert Wilson in the 1960s were seen as reverberations of the Big Bang.
Russian physicist George Gamow revived Lemaitre’s ideas in 1948 in order to explain the formation of chemical elements. British astronomer Fred Hoyle is credited for coining the expression ‘Big Bang,’ but he had actually used the term critically to reject this theory. Today, however, the Big Bang is the accepted explanation for the beginning of time.
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