Elon Musk photos show SpaceX rolling out Starship rocket booster
SpaceX moves the Super Heavy Booster 4 with 29 Raptor engines to the launch pad - Tesla Oracle
Starship Booster 4, Ship 20 arrive at SpaceX Texas launch site - SpaceFlight Insider
Booster 4 of starship with (I think) all engines added. When it eventually flies along with sn20 it's going to be the biggest and most powerful rocket ever flown. What a time