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Space water engine

05.04.2023

Pale Blue, who was born in the walls of the University of Tokyo, tested the rocket engine while adjusting the orbit of the EYE satellite.

Despite the simple mechanics of operation based on Newtonian physics, and relatively low cost, water engines for satellites have not yet become widespread.

Developed by Pale Blue, the system was launched with Sony's EYE satellite as part of its Earth imaging program. At launch, the engine was turned on for approximately two minutes, during which the EYE satellite orbit was corrected.

Pale Blue was created by Japanese scientists three years ago. It is developing several types of water-based propulsion systems. The one that was launched on EYE is called "Resistojet". The principle of its operation is quite simple. Basically, it just pushes the water out of the tube to push the satellite in a given direction. Correction of the movement of the object in this case is carried out using electronics.

The company is not going to stop there. She is already working on another type of water-based engine that looks more like an ion than a simple jet engine. In this configuration, water is atomized by a microwave plasma source and ejected from the rear of the setup.

Although it has not yet been possible to test the ion engine in Pale Blue space, the company has planned an even more ambitious one - combining two engine configurations into one hybrid.

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