Scientists’ Biggest Search For Dark Matter To Date Just Turned Up Nothing

Peter Dockrill, reporting for ScienceAlert: For something that’s hypothesised to make up more than 80 percent of the mass of the entire universe, it’s no easy thing to detect the existence of dark matter. That’s the conclusion the world is coming to today, after scientists announced that a massive $10 million experiment to find traces of elusive dark matter particles had failed after an exhaustive 20-month search. “We’ve probed previously unexplored regions of parameter space with the aim of making the first definitive discovery of dark matter,” said physicist Cham Ghag from University College London in the UK, one of the scientists who took part in the Large Underground Xenon (LUX) project based in South Dakota. “Though a positive signal would have been welcome, nature was not so kind! Nonetheless, a null result is significant as it changes the landscape of the field by constraining models for what dark matter could be beyond anything that existed previously.”Ars Technica has more details.


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