Gravity Propulsion Engine 2025 Price. This makes the engine capable of adapting to varying. Something like a reactionless drive โ an engine that moves a spacecraft without exhausting a finite stock of propellant.
So far, such a device only exists in science fiction. Bepicolombo, a joint mission by esa and the japan aerospace exploration agency, jaxa, will make its sixth flyby of mercury in january 2025.