Explosive Incident During Starship Water Deluge Test Raises Concerns Ahead of 12th Flight

During a routine water-deluge test at SpaceX’s Starbase in Texas, a sudden explosion was observed in the deluge farm, causing the system to shut down. The event occurred on a Sunday and precedes the planned 12th Starship test flight.

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SpaceX’s first Starship launch in April 2023 lacked a deluge system, causing pad damage and dust that reached a nearby town. The firm then added a reinforced steel plate and a water-deluge system that can spray up to 350,000 gallons, though early B19 static fires triggered automatic aborts.

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Starship Version 3 is slated for May 12 with a May 13 backup. SpaceX has completed ten static-fire tests of Starship prototypes. The deluge system is designed to release 350,000 gallons at ignition, most vaporizing in the plume.

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NASA Spaceflight reported the explosion and the deluge shutdown. SpaceX’s “Test Like You Fly” mini-documentary notes automatic aborts of the system during earlier B19 static fires. NASA still plans a low-Earth-orbit Starship test next year, feeding the Artemis III lunar schedule.

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Observers warn that repeated explosions and aborts raise safety concerns and could delay the May launch. The 2023 dust plume that reached a nearby town has spurred criticism of inadequate pad protection, implying the deluge system may remain unreliable.

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A live video captured a massive water-vapor plume and an unidentified object, likely a gas combustor, being expelled before the system shut down. Sources differ on whether a gas-unit failure caused the blast, and the launch schedule impact remains unclear.

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• “During a deluge test today, what seems to be an explosive event was observed in the deluge farm followed by the deluge shutting down.” — NASA Spaceflight, publication

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• “Bit of an issue with the deluge yesterday in SpaceX’s testing, but nothing that seems to have caused too much damage,” — Marcus House, space enthusiast and YouTuber

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• “Gas unit here looked to have popped it’s top. Huge pressures needed to drive that water, that’s for sure.” — Marcus House, space enthusiast and YouTuber

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• “The system is designed to spray as much as 350,000 gallons of water during Starship ignition and liftoff, with most of the water vaporized by the heat of the rocket engines.” — SpaceX, company statement

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Starship Version 3’s 12th test flight remains set for May 12, with a May 13 backup. NASA targets a low-Earth-orbit test next year, supporting Artemis III’s 2028 lunar landing goal.

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