Rolls-Royce is developing key technology for a nuclear micro-reactor that could one day power lunar bases and spacecraft propulsion. It could reach into the megawatt power range and would change space propulsion/power as we know it! Is it actually feasible with current conversion methods?

Sources & Credits:
https://www.youtube.com/watch?v=EiP4wocRp3g
https://www.youtube.com/watch?v=u7zNs2nueQM&t=1s
https://www.youtube.com/watch?v=j2BdNDTlWbo
https://www.youtube.com/watch?v=l-Puj0uyCAg
https://www.youtube.com/watch?v=6MtAa7YkfC8