A starship is any vehicle used to travel between planets, asteroids, and even star systems. Their size, shape, power source, and weaponry (if any) all differ wildly, depending on the ship in question. Certain automatons were made to pilot ships.
Starship usually have a hull made from a strong, but light, metal or alloy, such as titanium of aluminum. They require life support systems to regulate temperature and atmosphere within it, to keep their crew and passengers alive. Ships often have their own power generator, and larger vessels may have an FTL drive of some sort.