The Mayflower Autonomous Ship (MAS) will sail from Plymouth in the United Kingdom in September 2020 across the Atlantic to the United States. The plan is for the self-guided vessel to complete its journey in two weeks. The original Mayflower, carrying 102 English people in search of religious freedom, took two months, launching in September 1620 and reaching the eastern coast of North America in December of that year.

The modern ship, a trimaran, will be guiding itself, also using such cutting-edge technology as radar, the global positioning system (GPS), onboard cameras, and light detecting and ranging (LiDAR). Powering the ship will be wind and solar power; a diesel generator will be used if necessary.

Building the ship are U.S.-based computer and systems manufacturer IBM and ProMare, a nonprofit marine research operation. IBM's operational decision maker (ODM) software will help the ship make decisions along the way. The ship will also sample the waters it sails through for plastic.

The director of the project, Brett Phaneuf, grew up in New England and can trace his family history back to nearly the time of the Pilgrims' arrival. Phaneuf said that builders in Gdansk, Poland, were working on the ship and would have it ready by February 2020.