By RODRIQUE NGOWI and MARK PRATT Associated Press
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FALMOUTH, Mass. — The sheer size of the vessel and the shoes were what struck Robert Ballard when he descended to the wreckage of the RMS Titanic in 1986, the year after he and his crew from the Woods Hole Oceanographic Institution helped find the ocean liner that struck an iceberg and sank in the North Atlantic in 1912.