Opal
An in-space thruster that applies Alpha Impulsion's self-consuming engine idea to satellites. As of mid-2025 the company planned a first development test for late 2025 and qualification in 2026.
Why it matters
It gives the company a smaller, nearer-term product than a full rocket, built on the same engine principle.
How the technology works
Like the Grenat engine, Opal is meant to burn a solid fuel structure fed into a chamber where a catalyzed liquid oxidizer reacts with it. The company has not published thrust figures.
Sources
Updated Oct 22, 2026 · How we source facts · Suggest a correction