Launch Vehicles & Space Transportation   Commercial Space Industry (New Space)  

Sirius Space completes first hot-fire test of integrated STAR-1 engine ahead of 2027 demonstration flight

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Sirius Space has completed the first hot-fire test of its fully integrated STAR-1 rocket engine, marking a development milestone ahead of a planned 2027 demonstration flight. The test advances the company’s commercial launch vehicle program toward an in-flight demonstration.

Discovered 2026-09-13T04:05:20.098507-07:00 | 2026-09-13T04:05:20.098507-07:00

Briefing

What Hype is tracking

  • The hot-fire test marks the first reported firing of Sirius Space’s fully integrated STAR-1 engine, an important step from component development toward an operational launch system.
  • The company is targeting a 2027 demonstration flight, establishing a clear development timeline for its commercial launch vehicle program.

Reported By

European Spaceflight
Sources Tracked
1
First Seen
2026-09-13T04:05:20.098507-07:00
Latest Update
2026-09-13T04:05:20.098507-07:00
Coverage
Space

Sources

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