A ghost ship, also known as a phantom ship, is a vessel with no living crew aboard; it may be a ghostly vessel, such as the Flying Dutchman, or a physical derelict found adrift with its crew missing or dead, like the Mary Celeste. The term is sometimes used for ships that have been decommissioned but not yet scrapped, as well as drifting boats that have been found after breaking loose of their ropes and becoming carried away by the wind or the waves.