Discovery of the wreck

Titanic's bow, with the forestay shackle fallen forwards, as seen from the Russian MIR I submersible.

The idea of finding the wreck of Titanic, and even raising the ship from the ocean floor, had been around since shortly after the ship sank. No attempts were successful until 1 September 1985, when a joint American-French expedition, led by Jean-Louis Michel (Ifremer) and Dr. Robert Ballard (WHOI), located the wreck using the side-scan sonar from the research vessels Knorr and Le Suroit. In June 1985, the French ship Le Suroit began systematically crossing the 150-square-mile (390 km²) target zone with her deep-search sonar. Le Suroit covered 80 percent of the zone, leaving only 20 percent for the American ship Knorr. The wreck was found at a depth of 2.5 miles (4 km), slightly more than 370 miles (600 km) south-east of Mistaken Point, Newfoundland at 41°43′55″N 49°56′45″W / 41.73194°N 49.94583°W / 41.73194; -49.94583Coordinates: 41°43′55″N 49°56′45″W / 41.73194°N 49.94583°W / 41.73194; -49.94583, 13 miles (21 km) from fourth officer Joseph Boxhall's last position reading where Titanic was originally thought to rest. Ballard noted that his crew had paid out 12,500 feet (3,810 m) of the sonar's tow cable at the time of the discovery of the wreck, giving an approximate depth of the seabed of 12,450 feet (3,795 m). Ifremer, the French partner in the search, records a depth of 3,800 m (12,467 ft), an almost exact equivalent. These are approximately 2.33 miles (3.75 km), and they are often rounded upwards to 2.5 miles (4.0 km) or 4 km. Video cameras aboard the unmanned submersible Argo were the first to document Titanic's visual state on the bottom of the ocean. The submersible was based on Knorr and the images retrieved were featured in National Geographic by December 1985. In 1986, Ballard returned to the wreck site aboard Atlantis II to conduct the first manned dives to the wreck in the submersible Alvin.
Ballard had in 1982 requested funding for the project from the US Navy, but this was provided only on the then secret condition that the first priority was to examine the wreckage of the sunken US nuclear submarines USS Thresher and USS Scorpion. Only when these had been photographed did the search for Titanic begin.
The most notable discovery the team made was that the ship had split apart, the stern section lying 1,970 feet (600 m) from the bow section and facing opposite directions. There had been conflicting witness accounts of whether the ship broke apart or not, and both the American and British inquiries found that the ship sank intact. Up until the discovery of the wreck, it was generally assumed that the ship did not break apart.
The bow section had struck the ocean floor at a position just under the forepeak, and embedded itself 60 feet (18 m) into the silt on the ocean floor. Although parts of the hull had buckled, the bow was mostly intact. The collision with the ocean floor forced water out of Titanic through the hull below the well deck. One of the steel covers (reportedly weighing approximately ten tonnes) was blown off the side of the hull. The bow is still under tension, in particular the heavily damaged and partially collapsed decks.
The stern section was in much worse condition, and appeared to have been torn apart during its descent. Unlike the bow section, which was flooded with water before it sank, it is likely that the stern section sank with a significant volume of air trapped inside it. As it sank, the external water pressure increased but the pressure of the trapped air could not follow suit due to the many air pockets in relatively sealed sections. Therefore, some areas of the stern section's hull experienced a large pressure differential between outside and inside which possibly caused an implosion. Further damage was caused by the sudden impact of hitting the seabed; with little structural integrity left, the decks collapsed as the stern hit.
Surrounding the wreck is a large debris field with pieces of the ship, furniture, dinnerware and personal items scattered over one square mile (2.6 km²). Softer materials, like wood, carpet and human remains were devoured by undersea organisms.
Dr. Ballard and his team did not bring up any artefacts from the site, considering this to be tantamount to grave robbing. Under international maritime law, however, the recovery of artefacts is necessary to establish salvage rights to a shipwreck. In the years after the find, Titanic has been the object of a number of court cases concerning ownership of artefacts and the wreck site itself. In 1994, RMS Titanic Inc. was awarded ownership and salvaging rights of the wreck, even though RMS Titanic Inc. and other salvaging expeditions have been criticised for taking items from the wreck. Among the items recovered by RMS Titanic Inc. was the ship's whistle, which was brought to the surface in 1992 and placed in the company's travelling exhibition. It has been operated only twice since, using compressed air rather than steam, because of its fragility.
Approximately 6,000 artefacts have been removed from the wreck. Many of these were put on display at the National Maritime Museum in Greenwich, England, and later as part of a travelling museum exhibit.
A new expedition using sonar technology and high-resolution optical video and imaging has been started by RMS Titanic Inc. to document the wreck site. The new effort, Expedition Titanic, will deploy the most advanced 3DHD film and acoustic modeling to bring Titanic to life. The high-resolution photos and video are expected to reveal never-before-seen parts of Titanic (Scotland Road, the ship's pool, etc). The 20-day expedition will use remotely operated submersibles to complete an unprecedented archaeological analysis of the two- by three-mile (three- by five-kilometre) debris field, including Titanic’s two halves. Expedition Titanic will gather hard data too, for example by measuring the thickness of the ship’s hull and by hauling up and examining experimental steel platforms placed at the site.

Current condition of the wreck

Many scientists, including Robert Ballard, are concerned that visits by tourists in submersibles and the recovery of artefacts are hastening the decay of the wreck. Underwater microbes have been eating away at Titanic's steel since the ship sank, but because of the extra damage caused by visitors the National Oceanic and Atmospheric Administration estimates that "the hull and structure of the ship may collapse to the ocean floor within the next 50 years."
Ballard's book Return to Titanic, published by the National Geographic Society, includes photographs depicting the deterioration of the promenade deck and damage caused by submersibles landing on the ship. The mast has almost completely deteriorated and has been stripped of its bell and brass light. Other damage includes a gash on the bow section where block letters once spelled Titanic, part of the brass telemotor which once held the ship's wooden wheel is now twisted and the crow's nest has completely deteriorated.
The bacterium Halomonas titanicae, as described in the December 2010 issue of the International Journal of Systematic and Evolutionary Microbiology, has been isolated from rusticles on the remains of the Titanic. The metabolic processes of this bacterium have been shown to cause rapid degradation of the wreckage. Dr. Henrietta Mann, co-discoverer of the bacterium, said, "In 1995, I was predicting that Titanic had another 30 years . . . But I think it's deteriorating much faster than that now. Eventually there will be nothing left but a rust stain."

Ownership and litigation

Titanic's rediscovery in 1985 launched a debate over ownership of the wreck and the valuable items inside. On 7 June 1994 RMS Titanic Inc., a subsidiary of Premier Exhibitions Inc., was awarded ownership and salvaging rights by the United States District Court for the Eastern District of Virginia. (See Admiralty law) Since 1987, RMS Titanic Inc. and her successors have conducted seven expeditions and salvaged over 5,500 historic objects. The biggest single recovered object was a 17-ton section of the hull, recovered in 1998. Many of these items are part of travelling museum exhibitions.
In 1993, a French administrator in the Office of Maritime Affairs of the Ministry of Equipment, Transportation, and Tourism awarded RMS Titanic Inc.'s predecessor title to the relics recovered in 1987.
In a motion filed on 12 February 2004, RMS Titanic Inc. requested that the district court enter an order awarding it "title to all the artifacts (including portions of the hull) which are the subject of this action pursuant to the Law of Finds" or, in the alternative, a salvage award in the amount of $225 million. RMS Titanic Inc. excluded from its motion any claim for an award of title to the objects recovered in 1987, but it did request that the district court declare that, based on the French administrative action, "the artifacts raised during the 1987 expedition are independently owned by RMST." Following a hearing, the district court entered an order dated 2 July 2004, in which it refused to grant comity and recognise the 1993 decision of the French administrator, and rejected RMS Titanic Inc.'s claim that it should be awarded title to the items recovered since 1993 under the Maritime Law of Finds.
RMS Titanic Inc. appealed to the United States Court of Appeals for the Fourth Circuit. In its decision of 31 January 2006 the court recognised "explicitly the appropriateness of applying maritime salvage law to historic wrecks such as that of Titanic" and denied the application of the Maritime Law of Finds. The court also ruled that the district court lacked jurisdiction over the "1987 artifacts", and therefore vacated that part of the court's 2 July 2004 order. In other words, according to this decision, RMS Titanic Inc. has ownership title to the objects awarded in the French decision (valued $16.5 million earlier) and continues to be salver-in-possession of the Titanic wreck. The Court of Appeals remanded the case to the District Court to determine the salvage award ($225 million requested by RMS Titanic Inc.).
On 24 March 2009, it was revealed that the fate of 5,900 artefacts retrieved from the wreck will rest with a US District Judge's decision. The ruling will decide whether the artefacts should be placed in a public exhibit or in the hands of private collectors. The judge will also rule on the RMS Titanic Inc.'s degree of ownership of the wreck as well as establishing a monitoring system to check future activity upon the wreck site. On 12 August 2010, Judge Rebecca Beach Smith granted RMS Titanic, Inc. fair market value for the artefacts, but says that it may take another year to decide how that award will be paid