SpaceX’s Ship 40 returns to Starbase after journey through space & sea. SpaceX's Ship 40 is the first Starship to return to its launch site after travelling through the air, space and sea. It now stands inside a large building called a Megabay at Starbase, alongside three other Starships. The spacecraft will help SpaceX study how its heat shield, engines, electronic systems and other parts perform after a flight.