Wreck of the RMS Titanic research. The stern section, which had previously received relatively little attention from explorers, was specifically targeted for analysis. The microbial colonies aboard "Titanic" were also a key focus of investigation. The second expedition, from 27 May – 12 June 2004, saw the return of Robert Ballard to "Titanic" nearly 20 years after he discovered it. The expedition spent 11 days on the wreck, carrying out high-resolution mapping using video and stereoscopic still images. 2005 saw two expeditions to the "Titanic". James Cameron returned for the third and last time to film "Last Mysteries of the Titanic". Another expedition searched for
Wreck of the RMS Titanic Various other museums, including the National Maritime Museum in Greenwich and the SeaCity Museum in Southampton, have objects donated by survivors and relatives of victims, including some items that were retrieved from the bodies of victims. More donated "Titanic" artifacts are to be found in the Merseyside Maritime Museum in Liverpool and the Titanic Historical Society's museum in Indian Orchard, Springfield, Massachusetts. The latter's collection includes items such as the life jacket of Madeleine Astor, the wife of millionaire "Titanic" victim John Jacob Astor IV, a rivet which was removed from the hull before "Titanic" went to sea, an ice