What if the Shape of the Universe Is Curved?
The National Interest -

Eleonora Di Valentino

Science, Americas

Dark matter and gas in the universe. There may be more dark matter than we think.

No matter how elegant your theory is, experimental data will have the last word. Observations of the retrograde motion of the planets were fundamental to the Copernican revolution, in which the sun replaced Earth at the centre of the solar system. And the unusual orbit of Mercury provided a spectacular confirmation of the theory of general relativity. In fact, our entire...

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