Adventurers set sail for the wreck of the Titanic on Friday – marking the first expedition since the doomed OceanGate mission over a year ago that tragically killed five men. The Georgia-based firm that owns the salvage rights to Titanic, called RMS Titanic Inc, is probing the sunken ocean liner using two remotely operated vehicles (ROVs). According to the BBC, the robotic vehicles will reach 12,000ft (3,700 metres) down – the bottom of the North Atlantic, where the remains of the Titanic lie. They will capture millions of high-resolution photos to make a new 3D model of the debris, which is quickly deteriorating and could be lost in a few decades. A plaque will also be laid on the seabed in honour of Frenchman Paul-Henri Nargeolet, director of research at RMS Titanic Inc, who was one of the five Titan victims.

A transnational inquiry has been launched to determine accountability for the deaths of five passengers aboard the OceanGate Expeditions submersible that imploded during a descent to the wreckage of the Titanic in the North Atlantic, the United States Coast Guard announced Sunday. Maritime agencies from Canada, France and Britain are joining an investigation that will be led by the Coast Guard, Capt. Jason Neubauer said during a news conference at Coast Guard Base Boston. Neubauer said the priority of the investigation, known as a Marine Board of Investigation, or MBI, "is to recover items from the seafloor." Neubauer said investigators will also determine "the cause of this marine casualty" and establish accountability.

A video of a Coca-Cola being instantly crushed by water pressure gives an idea of what likely happened to the destroyed Titan submersible that claimed five lives. The pressure chamber on board OceanGate's 22-ft vessel suffered a'catastrophic implosion', authorities revealed on Thursday, and the men aboard tragically perished. The implosion would have been caused by a sudden change from low to high pressure inside the sub, possibly triggered by a defect in the sub's walls. Experts say the crew and passengers would have been crushed within a fraction of a millisecond, an event so fast it would have been over before they realized what was happening and so violent it's unlikely to leave anything but a mist of human remains. A video posted by James Hambley, a YouTuber who goes by the alias Barded Science Guy, shows a similar implosion happening to a Coke can.