China hopes to build a US$5-billion particle smasher within three years — beating Europe’s proposed mega-collider to the punch. The 100-kilometre Circular Electron Positron Collider (CEPC) would aim to measure the Higgs boson — a mysterious particle that gives everything mass — in exquisite detail. Such information could answer fundamental questions about how the Universe evolved and why particles interact in the way that they do.
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