A new study examines antimatter propulsion for spacecraft, showing that just 1 gram of antihydrogen could power 23 space shuttles—10 billion times more powerful than conventional rocket fuel. While production and storage hurdles remain significant, this technology could revolutionize space exploration.https://www.notebookcheck.net/Antimatter-propulsion-The-future-of-interstellar-travel.935633.0.html
Production and storage remain a hurdle. Not quite describing how grotesc that hurdle is!
Lets see:
-10nanograms a year means it would take 100.000.000 years to make a whole gram.
-Right now you cant even contain a simple fission reaction for a practical engine, you can still only dream of containing a fusion reaction on a terrestrial energy plant. Containing a matter/antimatter reaction is just unimaginable!