International research laboratory
Appears in 5 stories
Executing the High-Luminosity LHC upgrade during Long Shutdown 3
CERN crews cut the first magnet connection inside the Large Hadron Collider this week, formally beginning the machine's biggest overhaul since it was built. Around the ATLAS and CMS detectors, workers will pull 28 superconducting magnets and replace them with stronger versions that squeeze particle beams more tightly.
Updated Sep 25
Operates the Large Hadron Collider where the searches took place
The Large Hadron Collider's most thorough search for microscopic black holes came up empty. That absence is a result: it rules out quantum black holes up to about 12 TeV (tera-electron volts) and, with them, most theories of extra spatial dimensions.
Updated Sep 23
Operates the Large Hadron Collider, where the measurement was made
Physicists at CERN have found strong evidence that Z bosons, the particles that carry the weak nuclear force, become quantum entangled when produced in Higgs boson decays. The result, based on proton collisions at 13 trillion electron volts, shows that Einstein's "spooky action at a distance" persists at the most extreme energies ever tested in a laboratory.
Updated Sep 20
Operated the Large Hadron Collider where the measurement was made
Physicists at CERN have found a new way to peer inside atomic nuclei, zooming in on structures about one-quarter the size of a proton. Using the ALICE experiment at the Large Hadron Collider, they measured production of a particle called J/ψ (pronounced "JAY-sigh") at unprecedentedly fine resolutions—and saw something that challenges a decades-old explanation.
Updated Sep 13
Home to the world's only antimatter factory
Every antiproton ever studied has been measured in the same building where it was made: CERN's antimatter factory outside Geneva, the only facility on Earth that can produce and store them. On March 24, 2026, physicists loaded 92 antiprotons into a one-tonne portable trap, craned it onto a truck, and drove 10 kilometres, with roughly 91 surviving—the first time antimatter was transported beyond its birthplace.
Updated May 30
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