The ferry using Rolls-Royce technology that sails itself
Sensors and cameras help this ferry in Finland navigate independently and allowing it to dock itself.
In an emergency it can be controlled by humans from dry land using satellite and internet communications.
Rolls-Royce, who have developed the technology, believe it could eventually lead to ships not needing staff.
But would you want to travel on a ship without a captain or crew?
BBC Click finds out more.