French researchers say they have discovered one of the world’s largest healthy coral reefs, possibly paving the way for similar discoveries in locations that have not yet been explored, the Paris-based UNESCO agency announced Thursday.Wp Get the full experience. Choose your plan ArrowRight Discovered off the coast of Tahiti, an island in the Pacific Ocean that’s attached to France, the reef has been explored since late last year and is estimated to be almost two miles long.... Expedition projec