CERN's BASE collaboration successfully transported 92 antiprotons across the laboratory site in a truck, the organisation announced on 24 March. The particles were held in a specially designed cryogenic trap, demonstrating that antimatter can be moved while remaining confined in a controlled experimental system.
The achievement is a step towards taking antiprotons to laboratories where more precise measurements may be possible. Researchers compare the properties of matter and antimatter to test fundamental physics and investigate why the observable universe contains so much more matter. This demonstration took place within CERN; it was not a completed delivery to a distant external laboratory. Further development is needed before transport can become a routine part of that research programme.