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<Foundations of Big Bang Cosmology ⁄ >




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The Big Bang model of cosmology rests on two key ideas that date back to the early 20th century: General Relativity and the Cosmological Principle. By assuming that the matter in the universe is distributed uniformly on the largest scales, one can use General Relativity to compute the corresponding gravitational effects of that matter.



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http://map.gsfc.nasa.gov/universe/bb_concepts.html




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