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Dark matter could be a cosmic relic from extra dimensions



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Darkish matter, the elusive substance that accounts for almost all of the mass within the universe, could also be made up of huge particles referred to as gravitons that first popped into existence within the first second after the Large Bang. And these hypothetical particles may be cosmic refugees from further dimensions, a brand new principle suggests. 

The researchers’ calculations trace that these particles may have been created in simply the fitting portions to clarify dark matter, which may solely be “seen” by way of its gravitational pull on bizarre matter. “Large gravitons are produced by collisions of bizarre particles within the early universe. This course of was believed to be too uncommon for the large gravitons to be darkish matter candidates,” examine co-author Giacomo Cacciapaglia, a physicist on the College of Lyon in France, advised Reside Science.