Without going as far in the unknown there is this: https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive#Spacecraft_propulsion https://en.wikipedia.org/wiki/

Without going as far in the unknown there is this: https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive#Spacecraft_propulsion https://en.wikipedia.org/wiki/Magnetohydrodynamic_drive#Spac...