SpaceX Starship V3 Super Heavy booster B18 explodes during pressure test at Starbase, delaying upgrade timeline
During a Nov. 21, 2025 pressure proof test at Starbase, SpaceX’s first Version 3 Super Heavy booster (B18) suffered a visible detonation; there were no injuries. The anomaly will delay rollout of Starship v3 upgrades and compress the program’s planned launch cadence and testing schedule.