Scientists create heaviest antimatter nucleus, antihyperhydrogen-4

Researchers at the STAR Collaboration have created 16 particles of antihyperhydrogen-4, the heaviest antimatter atomic nucleus to date, by colliding gold nuclei at high speeds billions of times. This breakthrough was achieved at the Relativistic Heavy Ion Collider in New York, marking a significant advancement in antimatter research. The discovery was unexpected, with scientists acknowledging the uncertainty of finding this exotic particle.