It mapped more than 1,000 square kilometers of sea at a depth of up to one kilometer.
The British robotic ship provided an impressive demonstration of the future of robotic naval operations.
The two-meter ship Uncrewed Surface Vessel (USV) Maxlimer spent 22 days in the Atlantic and completed a seabed mapping mission.
SEA-KIT International, which developed the ship, controlled the entire mission via satellite from its base in Tollesbury, England.
The mission was partly funded by the European Space Agency, reports the BBC. Such robotic ships promise dramatic changes in the way people work at sea.
Many large research companies that use traditional manned ships have begun to invest in new technologies, as robotic ships have several advantages, and one of them is cost reduction.
Maxlimer set sail from Plymouth in late July and was sent to a location about 460 km southwest. It mapped more than 1,000 square kilometers of sea at a depth of up to one kilometer.
The robotic ship uses three satellites to communicate with the control room in Tollesbury, moves slowly at speeds of up to 4 knots (7 km / h), and its hybrid diesel-electric drive is extremely economical and efficient.