Antimatter zapped!

An international effort at CERN, led by a Canadian team of researchers, has used microwaves to manipulate antihydrogen atoms, providing the first glimpse of an "anti-atomic fingerprint." The present measurement involved confining anti-atoms in a magnetic trap and irradiating them with microwaves. Precise tuning of the microwave frequency and magnetic field enabled researchers to hit an internal resonance, kicking atoms out of the trap, and revealing information about their properties. Read more