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# Sirius Space test fires complete STAR-1 methalox rocket engine for first time
- URL: https://sovereigntymonitor.eu/news/2026-09-12-sirius-space-star1-engine-hotfire/
- Published: 2026-09-12T12:00:00.000Z
- Updated: 2026-09-18T13:55:06.000Z
- Description: French launch startup Sirius Space Services test fired its complete STAR-1 methalox engine for the first time, at Airborne Engineering's site in southern England, reaching 55 kilonewtons across multiple ignitions this summer.
- Author: Reidar Balstad
- Tags: Defence and space, #news, #verified, #ai-drafted

Verified AI-drafted [Sirius Space Services, LinkedIn company post, 12 September 2026](https://www.linkedin.com/company/sirius-space-services?ref=sovereigntymonitor.eu)

**What it does not test.** This does not establish an orbital launch, a funding round or a customer contract for Sirius Space.

**How this item counts.** No movement: no answer to who owns, who operates, whose law governs or who made the parts changes. Weight 0\. engine test milestone only, no launch/contract/funding; parts/own/operate unchanged. [European Sovereignty Index](https://sovereigntymonitor.eu/sovereignty-index/)

**How this item was made.** Drafted by an AI system (Claude (Anthropic)) from the source cited above and published under the editor’s responsibility without a person reading it first. [How the record is made](https://sovereigntymonitor.eu/method/#how-the-record-is-made)