We're building a new generation of space transportation vehicles. Powered by advanced detonation-based propulsion (RDRE), our vehicles are designed to move payloads efficiently between orbits and, ultimately, to the lunar surface — connecting the destinations of an emerging lunar economy.
✶ Our Vehicles
From the orbit you reach to the orbit your mission needs.
Stellar Orbiter
Extending the journey to the lunar surface.
Stellar Lander
✶ Our Engine
A different engine.
New possibilities.
Our breakthrough rotating detonation rocket engine.
Stellar Engine
✶ About Us
Swiss Roots,
Lunar ambitions.
Our story brings together experience in propulsion and vehicle engineering, a shared drive to solve complex challenges, and the ambition to build useful capabilities that extend beyond launch.
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Completed Europe’s first commercial RDRE hotfire and raised $4.5m within 82 days
Aquired Assets of the Company Ethinox
Completed Europe’s first commercial RDRE hotfire and raised $4.5m within 82 days
Completed Europe’s first commercial RDRE hotfire and raised $4.5m within 82 days
Reveal Event 2026