Abstract: We briefly review the history of research on antimatter, focusing on new results from the past few years, namely, the observation of the first antimatter hypernucleus and the heaviest antimatter nucleus so far, anti-helium-4, in the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. In addition, we present new results on antihydrogen atom capture from the European Organization for Nuclear Research (CERN), and describe the progress of the Alpha Magnetic Spectrometer phase-II experiment on the space station. Finally, the implications of these developments for understanding the structure of matter are discussed.