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from New Atlas

Simulation suggests 68 percent of the universe may not actually exist

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According to the Lambda Cold Dark Matter (Lambda-CDM) model, which is the current accepted standard for how the universe began and evolved, the ordinary matter we encounter every day only makes up around five percent of the universe’s density, with dark matter comprising 27 percent, and the remaining 68 percent made up of dark energy, a so-far theoretical force driving the expansion of the universe. But a new study has questioned whether dark energy exists at all, citing computer simulations that found that by accounting for the changing structure of the cosmos, the gap in the theory, which dark energy was proposed to fill, vanishes.

Published in 1915, Einstein’s general theory of relativity forms the basis for the accepted origin story of the universe, which says that the Big Bang kicked off the expansion of the universe about 13.8 billion years ago. The problem is, the equations at work are incredibly complicated, so physicists tend to simplify parts of them so they’re a bit more practical to work with. When models are then built up from these simplified versions, small holes can snowball into huge discrepancies.

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Posted on March 31, 2017 by Editor

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