SpaceX called off the first launch attempt of its upgraded Starship V3 rocket from Starbase, Texas, on Thursday after the countdown entered several holds in the final minute and the company ran out of troubleshooting time. The uncrewed mission, designated Flight 12, is the 12th integrated Starship test flight and would be the first for the V3 design after a seven-month pause since the previous Starship launch. Elon Musk said a hydraulic pin in the launch-tower arm failed to retract; SpaceX’s ...

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