A specially designed portable cryogenic Penning trap device filled with a cloud of 92 antiprotons is transferred onto a truck during a successful test drive of the world's first antimatter delivery system, conducted by CERN's BASE-STEP experiment, which transported antiprotons by road across the organization's main site, in Meyrin near Geneva, on March 24, 2026. The ultimate goal is to transport antiprotons to facilities such as Heinrich Heine University in Dusseldorf, where a calmer magnetic environment would enable measurements with greater precision. Such advances could provide crucial insights into one of the fundamental questions of physics: why matter dominates over antimatter in the universe. (Photo by Fabrice COFFRINI / AFP via Getty Images)