SpaceX scrubbed the launch of its giant Starship rocket for the second night in a row, halting Monday’s countdown at T-40 seconds after anvil clouds over the Starbase facility in South Texas violated lightning rules. The company said it is standing down and will determine the next available opportunity to fly. Monday’s weather-related abort followed a late-stage cancellation on Sunday caused by a ground-side liquid-oxygen leak. Both attempts aimed to send Super Heavy Booster 16 and Ship 37 on Starship’s 10th integrated flight test during a one-hour window that opened at 6:30 p.m. Central Time and was repeatedly adjusted, most recently to 6:59 p.m. Flight 10 is intended to demonstrate key elements of Starship’s reusable design after three failures earlier this year. Test objectives include a controlled splashdown of the 71-meter booster in the Gulf of Mexico, deployment of eight Starlink satellite simulators, an in-space Raptor engine restart and a high-energy re-entry of the upper stage over the Indian Ocean. The back-to-back scrubs add pressure on SpaceX as it works toward NASA’s Artemis III lunar-lander schedule in 2027 and prepares to transition Starlink launches to the heavier vehicle. The Federal Aviation Administration cleared the mission last week after closing its Flight 9 investigation, and Chief Executive Officer Elon Musk has signaled only two more flights of the current Starship variant before moving to a larger “V3” configuration.