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
Sinking of the RMS Titanic conclusions: the regulations on the number of lifeboats that ships had to carry were out of date and inadequate; Captain Smith had failed to take proper heed of ice warnings; the lifeboats had not been properly filled or crewed; and the collision was the direct result of steaming into a danger area at too high a speed. Both inquiries strongly criticised Captain Lord of "Californian" for failing to render assistance to "Titanic". Neither inquiry found negligence by the International Mercantile Marine Co. (the parent company) or the White Star Line (which owned "Titanic") to be a factor. The US inquiry