"Preliminary indication is that we had an oxygen/fuel leak in the cavity above the ship engine firewall that was large enough to build pressure in excess of the vent capacity."

SpaceX launched Starship on Thursday for a seventh test flight, after weather concerns pushed back an experiment that will feature the spacecraft’s first payload deployment test, and while it successfully caught the Super Heavy Booster, Starship lost connection and “experienced a rapid unscheduled disassembly.”

Teams will continue to review data from today's flight test to better understand root cause," SpaceX wrote on X. "With a test like this, success comes from what we learn, and today’s flight will help us improve Starship’s reliability.