Starship is the second-stage and the crew/cargo compartment of the SuperHeavy/Starship launch system. Its design relies on in-orbit refueling before continuing on to its final destination, whether that is Luna, Mars, or some other location in the Solar System.
Starship is has planned cargo, fuel, and crew variants planned. Mockups of a NASA-contracted crew variant exists, though the current iteration is only designed around cargo (Starlink).
