The universe is staying silent despite our loudest questions
In short: Humanity's largest machine has gone quiet, but its silence speaks volumes. After smashing particles together at nearly the speed of light to unlock the secrets of existence, we found one major piece of the puzzle—the Higgs boson—and then... nothing. The universe is refusing to reveal its next secret.
The Large Hadron Collider (LHC), a 17-mile underground ring spanning the border of France and Switzerland, represents the pinnacle of human engineering. Since its first successful proton collision in 2009, it has functioned as a high-speed laboratory for recreating the conditions of the universe just after the Big Bang. Its crowning achievement came in 2012 with the discovery of the Higgs boson, a fundamental particle that explains how other particles acquire mass.
However, this victory revealed a profound scientific dilemma. Despite searching for new particles, hidden forces, and clues regarding dark matter or physics beyond the Standard Model, researchers have found almost nothing since the Higgs discovery. This 'Higgs and nothing else' scenario has left physicists questioning whether the current theories are incomplete, if the machine has reached its physical limits, or if the deepest secrets of reality are simply beyond our current reach.
To address this, the LHC is undergoing a four-year planned shutdown known as Long Shutdown 3 (LS3). Starting in June 2024, specialists will upgrade the facility into the High-Luminosity Large Hadron Collider (HiLumi LHC). This transition aims to make the machine 10 times more sensitive than its original version. By tripling the number of particle collisions compared to the existing setup, scientists hope to gather enough data to finally spark a breakthrough in understanding antimatter and the early universe.
The HiLumi LHC is scheduled to come back online in 2030 and will run until the 2040s. Even then, it will be earmarked for replacement by an even higher-energy accelerator. The current silence of the machine marks a pivotal moment: a transition from simply proving what we know to desperately searching for what we don't.
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Sources
- Summary by Intellect · source: Why Humanity's Largest Machine Is Being Silently Shut Down
- Also: CERN shuts down Large Hadron Collider until 2030, upgrading the atom smasher to its most powerful form yet | Live Science
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