A crewless robotic boat retracing the 1620 sea voyage of the Mayflower landed near Plymouth Rock on Thursday.
The sleek Mayflower Autonomous Ship met with an escort boat as it approached the Massachusetts shoreline, more than 400 years after its namesake's historic voyage from England.
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Piloted by artificial intelligence technology, the 50-foot (15-meter) trimaran didn't have a captain, navigator or any humans on board.
The ship's first attempt to cross the Atlantic in 2021 was beset with technical problems, forcing it to return to its home port of Plymouth, England.
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It set off from the English coast again in April but mechanical difficulties forced it to divert twice: first to Portugal's Azores islands and then to Canada. On Monday, it departed Halifax, Nova Scotia bound for Plymouth Harbor in Massachusetts, where it docked later Thursday near a replica of the original Mayflower that brought the Pilgrims to America.
Nonprofit marine research organization ProMare worked with IBM to build the ship and has been using it to collect data about whales, microplastics pollution and for other scientific research. Small autonomous experimental vessels have crossed the Atlantic before but researchers describe it as the first ship of its size to do so.
