According to astronomers, the Big Bang happened 15 billion years ago. However, the matter of the universe stretches 156 billion light years across. In order for the matter at the edge to have reached its current position, i.e., a radius of 78 billion light years, it would have had to travel at five times the speed of light. According to the accepted physical laws, as explained by Einstein, it is impossible for anything to exceed the speed of light. So, how did that happen?
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