Discovery and legacy
Within days of the Titanic's sinking, talk began of finding the wreck. Given the limits of technology, however, serious attempts were not undertaken until the second half of the 20th century. In August 1985 Robert Ballard led an American-French expedition from aboard the U.S. Navy research ship Knorr. The quest was partly a means for testing the Argo, a 16-foot (5-metre) submersible sled equipped with a remote-controlled camera that could transmit live images to a monitor. The submersible was sent some 13,000 feet (4,000 metres) to the floor of the Atlantic Ocean, sending video back to the Knorr. On September 1, 1985, the first underwater images of the Titanic were recorded as its giant boilers were discovered. Later video showed the ship lying upright in two pieces. While the bow was clearly recognizable, the stern section was severely damaged. Covering the wreckage were rust-coloured stalactite-like formations. Scientists later determined that the rusticles, as they were named, were created by iron-eating microorganisms, which are consuming the wreck.
The Titaniclocated at about 41°43¢57¢¢ N, 49°56¢49¢¢ W (bow section), some 13 nautical miles (24 km) from the position given in its distress signalswas explored numerous times by manned and unmanned submersibles. The expeditions found no sign of the long gash previously thought to have been ripped in the ship's hull by the iceberg. Scientists instead discovered that the collision's impact had produced a series of thin gashes as well as brittle fracturing and separation of seams in the adjacent hull plates, thus allowing water to flood in and sink the ship. In subsequent years, marine salvagers raised small artifacts from the wreckage as well as pieces of the ship itself, including a large section of the hull. Examination of these partsas well as paperwork in the builder's archivesled to speculation that low-quality steel or weak rivets may have contributed to the Titanic's sinking.
Countless renditions, interpretations, and analyses of the Titanic disaster transformed the ship into a cultural icon. In addition to being the subject of numerous books, the ship inspired various movies, notably A Night to Remember (1958) and James Cameron's blockbuster Titanic (1997). In the late 20th and early 21st centuries, artifacts from the ship formed the basis of a highly successful exhibit that toured the world, and a profitable business was developed transporting tourists to the Titanic's wreck. Several museums dedicated to the liner draw thousands of visitors each year. Although the wreck of the Titanic will eventually deteriorate, the famed liner seems unlikely to fade from the public imagination.