By Lucretia Hughes | Real News
The world’s most powerful particle accelerator has officially gone quiet—but not for the reason many headlines on social media would have people believe.
The European Organization for Nuclear Research (CERN) announced that the Large Hadron Collider (LHC) has entered Long Shutdown 3 (LS3), a planned four-year shutdown to perform the most significant upgrades in the facility’s history. The shutdown is expected to last until 2030, when the newly upgraded High-Luminosity Large Hadron Collider (HL-LHC) begins operations.
The LHC, located beneath the border of France and Switzerland, first began operating in 2008 and became world-famous in 2012 after scientists confirmed the existence of the Higgs boson, often referred to as the “God Particle.” Since then, it has helped researchers better understand the fundamental building blocks of the universe.
Rather than signaling the end of CERN’s research, officials say the shutdown is designed to make the collider even more powerful. Engineers will replace sections of the 27-kilometer ring with next-generation superconducting magnets, install new technologies, and upgrade the detectors that record particle collisions. The goal is to increase the collider’s luminosity—allowing scientists to collect roughly ten times more data than the current machine has produced.
The improvements are expected to help physicists study the Higgs boson in greater detail while increasing the chances of discovering entirely new particles and phenomena, including possible clues about dark matter and other unanswered questions in modern physics.
The planned shutdown has also reignited debate online. For years, CERN has been the subject of speculation and conspiracy theories claiming the collider could create black holes, open portals, or somehow threaten humanity. Scientists have repeatedly rejected those claims, explaining that the shutdown is a scheduled engineering project that has been in planning for years and is part of the collider’s long-term operating cycle.
When the upgraded High-Luminosity LHC returns in 2030, it is expected to become the most advanced particle collider ever built, giving researchers unprecedented opportunities to explore the laws of physics while continuing CERN’s mission of expanding humanity’s understanding of the universe.
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