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 to Thee" as the ship sank, but this appears to be dubious. The claim surfaced among the earliest reports of the sinking, and the hymn became so closely associated with the "Titanic" disaster that its opening bars were carved on the grave monument of "Titanic"s bandmaster, Wallace Hartley, one of those who perished. Violet Jessop said in her 1934 account of the disaster that she had heard the hymn being played. In contrast, Archibald Gracie emphatically denied it in his own account, written soon after the sinking, and Radio Operator Harold Bride said that he had heard the band playing