Chemical rockets and ion engines can help us explore the Solar System, but they're ill-equipped to take us to other stars. For that, we'll need something more energy-dense: antimatter. We know how to generate antimatter in small quantities, but how could we practically create and store antimatter for use in a rocket that could travel in interstellar space? A new paper suggests the experiments that should be done to create practical space travel engines.
https://www.researchgate.net/profile/Mark-Pickrell/publication/374581514_Quantification_of_ElectronPositron_Pairs_for_MatterAntimatter_Propulsion_Experimental_Results_Next_Steps/links/652551252db76c669aff00f8/Quantification-of-Electron-Positron-Pairs-for-Matter-Antimatter-Propulsion-Experimental-Results-Next-Steps.pdf