Though gold and diamonds are precious materials, they're nowhere near the most expensive thing in the universe. In fact, the ...

Antihydrogen falls downward! Settling a long-standing question, scientists have proven that antihydrogen falls downward in a first-ever direct experiment. DOE/US Department of Energy ...

Laser-cooling of antihydrogen atoms, which we first demonstrated in ALPHA-2 and will implement in ALPHA-g when we return to it in 2024, is expected to have a significant impact on the precision.” ...

The Antihydrogen Laser Physics Apparatus (ALPHA) collaboration, an international team based at CERN, measured gravity’s impact on antimatter for the first time.

Those antihydrogen atoms were made by mixing antiprotons, created at CERN, with positrons from a radioactive source. The researchers then released the antihydrogen from its magnetic cage, counting ...

The antiprotons and positrons attract, forming neutrally charged atoms of antihydrogen, the antimatter version of hydrogen. The neutral charge is important because gravity is a weak force.

Dr. Fajans was part of an international team known as ALPHA, the Antihydrogen Laser Physics Apparatus collaboration, which is based at CERN and led by Jeffrey Hangst, a particle physicist at ...

And now the Antimatter Factory at Cern has succeeded in creating antihydrogen. Researchers hope it could help answer one of the universe’s biggest mysteries: where did all the antimatter go?

We took our antihydrogen measurement to 12 decimal places of precision. This is worse than the most precise measurement of ordinary hydrogen by a factor of 1,000, but it’s currently the best ...

Laser-cooling opens up exciting possibilities for measuring antihydrogen. Combined with existing techniques that allow us to accumulate relatively large amounts of antihydrogen (thousands of antiatoms ...

The team creates their antihydrogen atoms but taking antiprotons from the CERN Antiproton Decelerator and binding it with positrons originating from a sodium-22 source.