SpaceX’s Starship launch system lifted off on its seventh uncrewed test flight on Thursday, with an upgraded version of the megarocket embarking on the program’s most ambitious flight to date, CNN reported.

SpaceX was able to duplicate its prior feat of catching a booster that returned to Earth. But 8.5 minutes into flight, the Starship spacecraft itself was lost. “Starship experienced a rapid unscheduled disassembly during its ascent burn. With a test like this, success comes from what we learn, and today’s flight will help us improve Starship’s reliability,” SpaceX posted on X.