Suppose that the entire Universe had been concentrated at a point about 12 billion years ago (1.2 x 1010 years) and that then, due to an explosion,...
Suppose that the entire Universe had been concentrated at a point about 12 billion years ago (1.2 x 1010 years) and that then, due to an explosion, it had begun to expand uniformly at a speed equal to 93% of the speed of propagation of light in a vacuum. What would be the current size of the Universe? Compare and comment.
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