Starship, the most powerful rocket ever built, pulled off a daring booster catch on its most ambitious test flight yet, but the spacecraft was lost. Follow for the latest news.

SpaceX suspects a fire may have caused its Starship to break apart during liftoff and send trails of flaming debris near the Caribbean. SpaceX's Elon Musk said preliminary indications are that leaking fuel built up pressure in the cavity above the engine firewall. The resulting fire would have doomed the spacecraft.