Quote: "A Belgian priest named Georges Lemaître first suggested the big bang theory in the 1920s when he theorized that the universe began from a single primordial atom. The idea subsequently received major boosts by Edwin Hubble's observations that galaxies are speeding away from us in all directions, and from the discovery of cosmic microwave radiation by Arno Penzias and Robert Wilson."
Paraphrase: A priest from Belgium first came up with the big bang theory in the 1920s. Edwin Hubble, a famous astronomer, then discovered that the galaxies are moving away from each other. Recently, the discovery of "cosmic background radiation" has provided more evidence for the theory.
Citation: Origins of the Universe. 2009. National Geographic Online. 15 April 2010. <http://science.nationalgeographic.com/ science/space/universe/origins-universe-article.html>.
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