Adarsh Verma needs to return to journalism school, or maybe even high school.
He obviously has confused ‘without any fuel’ to mean a physics defying process. ARRGHHH!!!
The actual engine uses solar power to drive a microwave induced thruster and the fuel is provided by solar cells in the form of electricity.
The unique aspect of the engine is that it doesn’t need to have on board fuel storage for operation.
Right that’s why all of us deplorables out here in flyover land need to get us those electrical cars cuz they save the planet! they don’t use any FUEL!!!