New version of Starship rocket ready for critical test flight

A new version of SpaceX's mammoth Starship rocket, featuring multiple upgrades, more powerful engines and major safety enhancements is poised for blastoff Thursday in a critical milestone for Elon Musk's rocket company. It's also a critical mission for NASA, which is counting on SpaceX to develop and deliver a flight-tested, human-rated version of the Starship upper stage to carry Artemis astronauts from lunar orbit to the moon's surface and back before the end of 2028. …