We know a few things from today's flight: (1) Booster 15, the Super Heavy used today, successfully returned from launch and was caught by the "chopsticks" on Orbital Launch Mount 1 (OLM-1), (2) Starship Ship 34 did reach the 8 minute in the flight as it did on Flight 7, but (3) once again there was a failure of the rocket at this point; unlike Flight 7, this one appears to be an engine failure of some sort (that's my guess; the FAA and SpaceX haven't said anything yet) and (4) this is the second straight failure of the Block 2 Starship.
Now, what could explain the failure of Ship 34 here? That's a good question; best guess at the moment is that harmonic vibrations in the attic section of Shiop 34 (where the engine & fuel lines are located) caused something to fail there, which then led to failure and/or explosion of one of the engine bells, which cascaded into total loss of Ship 34. Remember this is a test flight, the eighth of the Starship era and if anyone remembers the path Falcon took through Falcon 1 and now Falcon 9/Falcon Heavy, you know nothing is ever 100% certain in flight testing. That's why flight testing is as extensive as it is, but two consecutive failures of Starship?
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