Good news!
"Particle physicists in Europe intend to build a 91-kilometer-long circular collider—the largest accelerator ever—to smash electrons into positrons, officials at the European particle physics laboratory, CERN, announced today in an online press conference. The Future Circular Collider (FCC) would be completed by the mid-2040s, after CERN’s current atom smasher, the 27-kilometer-long Large Hadron Collider (LHC), winds down. It would cost 15 billion Swiss francs, or about $19 billion—and it might pave the way for a much more powerful, and expensive, successor. ...
The new machine, officially the FCC-ee, would actually be the first of two new accelerators. It would occupy a huge new tunnel at CERN and smash electrons into positrons at energies up to 0.365 tera-electron volts (TeV), generating, among other things, large numbers of Higgs bosons. The Higgs, discovered in 2012 by the LHC, anchors physicists’ explanation of how fundamental particles get their mass. Although the FCC-ee’s collision energy would be lower than the LHC’s 13.6 TeV, its electron-positron collisions would be cleaner than the LHC’s proton-proton collisions, enabling physicists to study the Higgs in unprecedented detail. ..."
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