Japan Tests Exploding Rocket Engine for the First Time in Space

This could change the face of deep space exploration.
Ring of Explosions

Japan's space agency JAXA announced it has demonstrated in space the operation of a rotary-detonation engine, a first for space.

This engine uses controlled explosions to travel around the base of a circular channel. According to JAXA, the result is a huge amount of thrust from a smaller engine that uses significantly less fuel. This could be a game changer in deep space exploration.

This is a very lucrative venture and Japan is not the only country interested in it. Scientists across the US are investigating the possibility of making rockets lighter and more eco-friendly.

A Sounding Success

On July 27, JAXA launched a sounding rocket measuring 30 feet from the Uchinoura Space Center in order to test futuristic propulsion systems. It reached an altitude of approximately 146 miles.

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After rescuing the rocket from the sea, JAXA engineers looked over the data to determine that the experiment was a success.

The rocket separated from the first stage. It burned the rotary engine for six second, while the second pulse detonation engine, a similar system that uses detonation wave to burn fuel and oxygen, was activated for two seconds.

The thrust produced by the rotary engine was only about 500 Newtons, which is a fraction of what conventional rocket engine engines can do.

The agency claims that their in-space test proved that rotating detonation engine could be used to travel far into space with a fraction of the fuel or weight.

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According to Professor Jiro Kasahara of Nagoya University, the goal is to make the technology practical in five years.

READ MORE: Space demonstration of a detonation engine to deep space exploration using sounding rocket S-520-31 [JAXA]



Read more about rotary detonation engine: Scientists build rocket engine powered by spiraling explosions