@interstellarspacex: Booster 21 Fires Up All Engines in Full-Duration Test SpaceX has successfully completed a full-duration static fire of Super Heavy Booster 21, firing all 33 Raptor engines at Starbase, Texas. The Block 3 booster is planned to support Starship Flight 14, paired with Ship 41. This major test helps verify the booster’s engines, propulsion systems, fuel flow, thrust performance, and ground systems before its next flight. With Booster 21 now completing its full-duration test, preparations for the next Starship mission are moving one step closer to launch. #SpaceX #Starship #SuperHeavy #Booster21 #StarshipFlight14

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Sunday 06 September 2026 16:39:29 GMT