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[Update: Booster 4 rolls out, Starship 20 stacked] SpaceX works at stunning speed installing 29 Raptor engines overnight on Super Heavy Booster 4 ahead of Starship SN20 orbital flight

Update: Booster 4 has rolled to the launch site and is now awaiting integration with Starship 20, which has been stacked in the High Bay.


This morning Elon Musk showed off what appears to be a full complement of 29 Raptor engines in place on Starship Super Heavy Booster 4. The stunning overnight installation is the latest feat in a breathtaking surge of activity around SpaceX’s Starbase facilities as the company pushes hard toward a maiden orbital flight test for the fully stacked vehicle.

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