CERN’s ALPHA collaboration pins down the ground-state hyperfine splitting of antihydrogen within four parts per million ...

Continuing our coverage of the antimatter research symposium at AAAS, we report on the creation of complex forms of antimatter. Antiatoms and heavy antimatter with strange quarks take top billing.

A small amount of antimatter took to the road on Tuesday, representing the first time any quantity of the world’s most expensive, volatile and rare substance has been moved. The breakthrough opens the ...

Antimatter is matter’s equal and opposite. If the two meet, they annihilate each other, turning entirely into energy. This makes it incredibly difficult to store or move antimatter. On 24 March, a ...

Our universe is filled with particles, such as electrons and protons, which make up all the stuff on our planet and beyond: animals, plants, people, planets, asteroids, stars, gas clouds, and galaxies ...

Nestled in the heart of CERN’s antimatter factory, surrounded by intensely powerful magnetic fields and within a vacuum sparser than interstellar space, is some of the most sensitive material on Earth ...