A crewless, artificial intelligence-controlled ship landed in Plymouth, Mass., Thursday, after a 3,500-mile transatlantic trip that retraced the historic voyage of the Mayflower just over 400 ...

FILE - In this Monday, Sept. 14, 2020 file photo, technicians lower the Mayflower Autonomous Ship into the water at its launch site for it's first outing on water since being built in Turnchapel ...