Tau.Neutrino said:
Physicists Have Captured The First Spectral Fingerprints of Antimatter
A new chapter in antimatter research.
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“ALPHA Collaboration managed to do it by cranking up CERN’s Antiproton Decelerator and churning out about 90,000 antiprotons. … Even after making 1.6 million positrons, the researchers only managed to make about 25,000 antihydrogen atoms. … In all, the team managed to trap and detect just 194 atoms over a number of trials”.
If you wanted antimatter for a spaceship drive, would you use positrons, antiprotons, antineutrons, or antihydrogen?