Researchers at CERN in Geneva has for the first time investigated the properties of antimatter atoms. The ALPHA experiment at CERN’s antimatter factory reports first ever optical spectroscopy of a pure anti-atom.
The first results from the Alpha Magnetic Spectrometer aboard the International Space Station were discussed during a Press Briefing at NASA Headquarters. Those results confirm an unexplained excess of high-energy positrons in Earth-bound cosmic rays. Antimatter is rare in the universe today.