Archaeologists claim to have discovered the missing HMS Endeavour off the coast of the United States in what would be one of the most significant findings in Australian history.

Experts at the Rhode Island Marine Archaeology Project (Rimap) say they have tracked down the resting place of Captain Cook’s doomed vessel, which found Australia in 1770.

The ship was later used by the British royal navy in the American war of independence, at which point it was scuttled off the coast of Rhode Island in 1778.

The full details off the possible discovery will be announced at an “event” on Friday, according to a statement on Rimap’s website.

“The event will review how the 25-year-long archaeological study of the Newport transports has narrowed the search for the Endeavour from a fleet of thirteen vessels to five and now possibly to one or two archaeological sites,’ a spokesman said.

According to Fairfax media, project director Kathy Abbas added: “We can say we think we know which one it is”.

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