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CERN has started replacing some of the Large Hadron Collider's most important magnets as part of its High-Luminosity upgrade. The new superconducting magnets will produce fields about 40% stronger, allowing particle beams to be squeezed more tightly before collisions. The upgrade is expected to generate far more collisions for the ATLAS and CMS experiments to analyze, giving physicists a substantially larger dataset to probe the fundamental workings of the universe once the collider resumes operation.