The Mars-bound ship is due to depart on its test orbit in July. Taking to Twitter, the SpaceX CEO shared a picture of the huge 50-metre-long stainless steel craft.
Mr Musk captioned the post: “Ship 16 & Booster 2, Starbase Highbay.”
The ship can be seen in a hangar at Mr Musk’s Starbase facility at Boca Chica in Cameron Country, Texas.
The development of the Starship brings Mr Musk closer to his aim of landing an astronaut on Mars this decade.
The SpaceX CEO hopes to colonise the hostile Red Planet and construct cities among its craters by 2050.
SpaceX began testing its Starship prototypes in January 2020.
The company is also building a 70-metre Super Heavy booster that will be fully reusable and capable of supporting regular rocket launches from Earth.
Together, the two-stage rocket will be 120 metres tall and will reportedly be the world’s most powerful launch vehicle ever developed.
Mr Musk has explained how the next logical step for humanity’s development in space is a permanent base on the moon and a city on Mars.
Earlier this year, he said the space industry should “consider the next step beyond space stations”.