Seems there are several thruster designs aimed towards this goal: https://larouchepub.com/other/2019/4622-revolutionary_space_propulsion.html https://larouchep

Seems there are several thruster designs aimed towards this goal: https://larouchepub.com/other/2019/4622-revolutionary_space_propulsion.html https://larouchepub.com/other/2019/4622-revolutionary_space_... And at NASA: https://www.nasa.gov/pdf/501329main_TA02-InSpaceProp-DRAFT-Nov2010-A.pdf https://www.nasa.gov/pdf/501329main_TA02-InSpaceProp-DRAFT-N... https://futurism.com/nasas-new-ion-thruster-breaks-records-could-take-humans-to-mars https://futurism.com/nasas-new-ion-thruster-breaks-records-c...