This composite image, released by RMS Titanic Inc., and made from sonar and more than 100,000 photos taken in 2010 from by unmanned, underwater robots, shows a portion of a comprehensive map of the 3-by-5-mile debris field surrounding the bow and stern of the Titanic on the bottom of the North Atlantic Ocean. The luxury passenger liner sank about 375 miles south of Newfoundland, Canada, after striking an iceberg on its maiden voyage from England to New York on April 15, 1912, killing 1,517 people. (AP Photo/RMS Titanic Inc.)