Starship Test Flight 8: Upper Stage Rapid Unscheduled Disassembly

SpaceX on Thursday, conducted the eighth test flight of its Starship launch vehicle from the Starbase facility in Boca Chica, Texas. The Super Heavy booster (B15) was successfully caught by the launch tower's mechanical arms, known as Mechazilla, but the upper stage (Ship 34) experienced a "rapid unscheduled disassembly" (RUD) during its ascent burn, resulting in the loss of the spacecraft.

Thursday's flight aimed to deploy four Starlink satellite simulators, conduct reentry experiments, and test the upper stage's ability to relight its engines in space.

The launch occurred at approximately 2330 UTC. About seven minutes after liftoff, the Super Heavy booster executed a precision boost back burn and was successfully caught by Mechazilla, marking the third successful catch in four attempts.

At around 10 minutes after liftoff, SpaceX reported a "rapid unscheduled disassembly" of the upper stage (Ship 34). Contact was lost with the spacecraft, and it was observed breaking apart, with debris seen streaking across the sky.

"During Starship's ascent burn, the vehicle experienced a rapid unscheduled disassembly and contact was lost," SpaceX wrote on X. "Our team immediately began coordination with safety officials to implement pre-planned contingency responses. We will review the data from today's flight test to better understand root cause. As always, success comes from what we learn, and today’s flight will offer additional lessons to improve Starship's reliability."

The Federal Aviation Administration (FAA) briefly issued ground stop orders for multiple Florida airports due to the potential debris threat. SpaceX immediately began coordinating with safety officials to implement pre-planned contingency responses and will review the data from the flight test to better understand the root cause of the failure.

The seventh flight test also experienced a failure due to a propellant system issue, leading to the destruction of the vehicle.

This was the second flight of a Block 2 ship, featuring several upgrades, including a 25% increase in propellant capacity and redesigned avionics.

Despite Thursday's setback, SpaceX remains committed to the Starship program, which is designed to create a fully reusable spacecraft capable of transporting crew and cargo to Earth orbit, the Moon, Mars, and beyond.