God was a knocking and he wanted in real bad.😏
I think that was Footfall.
There were some of the “old” ships in the reboot of Battle Star galactica that had this as a sunlight propulsion. They didn’t say anything but some of the craft had a huge cluster of nozzles in the back with timed explosions instead of a continuous stream.
I love when shows at least make an effort toward hard science.