3 NEWS #usa Propellant-free thrusters: Company claims major breakthrough - BGR
- Propellant-free thrusters: Company claims major breakthrough BGR
- NASA Veteran's Propellantless Propulsion Drive That Physics Says Shouldn't Work Just Produced Enough Thrust to Overcome Earth's Gravity The Debrief
- NASA expert's propellantless propulsion drive defies Physics Interesting Engineering
- Former NASA Engineer Says He's Invented a Thruster That Doesn't Require Propellant Yahoo News UK
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