CERN (European Organization for Nuclear Research)

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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 around the laboratory site. Roughly 91 survived. It is the first time antimatter has been transported outside its birthplace.

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