What is the structure of the Universe? Geometry of spacetime

The Einstein equation predicts several possible ways for the Universe to evolve in time and space. What are these predictions, and how do they

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How Old is the Universe? (All Calculations so far)

A Bible-based assumption of a few thousand years was made by Isaac Newton. Einstein believed in a World that was

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Reality and imagination quote

It is difficult to say what is real and what is imaginary, what is a new discovery vs vivid illusion.

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