Stellar Alpina Unveils Rotating Detonation Rocket Engine Spacecraft Targeting 6,000 m/s

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Rotating detonation rocket engine startup Stellar Alpina AG has unveiled Monarch, an orbital transfer vehicle targeting 6,000 m/s delta-v, and Morpho, a lunar lander, both powered by non-cryogenic green propellants. Europe's first commercial RDRE spacecraft designs aim to serve satellite operators in a growing in-space mobility market. — Tech Times