The early universe had no light, as it had no stars to light it up. During the very beginning of the universes life, nothing but hydrogen atoms existed. These hydrogen atoms were spread great distances apart from eachother, with the approximation that if 1 hydrogen atom were the size of a ping pong ball, the hydrogen atom nearest to it would be approximately 200,000 kilometers away, which is nearly half of the distance between the Earth and the moon. Computer simulations have verified that the u...
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