First ever measurement on atom of pure antimatter

First ever measurement on atom of pure antimatter:  In the latest work, the ALPHA team trapped an atom of antihydrogen using magnetic fields. By shining microwave radiation tuned to a specific frequency on this captive, the team were able to flip the anti-atom's magnetic moment, liberating it from the trap and allowing it to be detected. This process enabled the first spectroscopic measurement of antihydrogen.