Did We Invent Dark Energy for Nothing?

This map of the cosmic microwave background is what ultimately forced astronomers to invoke the concept of dark energy but a new study reveals that may not be the case (Credit : NASA/WMAP)

For nearly thirty years, dark energy has been cosmology’s great get out of jail free card, the invisible, mysterious force we invented to explain why the universe is expanding faster than it should be. Now a team of mathematicians says we may never have needed it at all. And the implications are stranger than you might think.

Universe Today
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