Super Heavy booster has been ready to continue preflight testing for 5 days and has been testing. SpaceX is conducting a series of tests to activate Pad 2 at Starbase, exercise new propellant loading operations, and operate a vehicle with new Raptor 3 engines installed for the first time. Super Heavy booster ready to continue ...

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Link :
https://www.nextbigfuture.com/2026/03/spacex-testing-booster-for-v3-starship-launch-in-3-4-weeks.html