SpaceX suffered another RUD (Rapid Unscheduled Disassembly) of their most promising Starship prototype, SN4, just minutes after another successful static test firing of the Raptor engine at the Boca Chica, TX test facility. SpaceX has been testing SN4, the first Starship prototype to get past the pressurization tests, and has conducted three previous successful test fires. It was not evident immediately what the cause of the explosion was, but there was a lot of venting at the bottom of the rocket after the test and immediately preceding the explosion.

https://twitter.com/SpaceflightNow/status/1266461652020531201/video/1

Starship SN4 explosion
Starship SN4 explosion
Starship SN4 Destroyed After Static Test
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