Momentus claims water is simpler, safer and more cost-efficient than other types of propellant.
Credit: Momentus
Momentus’ Vigoride-5 space tug has raised its orbit using its microwave electrothermal thruster, a propulsion system that uses distilled water as a propellant. The maneuvers raised the altitude of the orbital transfer vehicle by more than 1.9 mi. (3 km), the company said on May 8. “Each ignition has...
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