Five people who were aboard a submersible carrying them to view the wreckage of the Titanic went overdue late on June 18, 2023. The vessel on which they were travelling is not a submarine but a submersible. British billionaire Hamish Harding, the chairman of Action Aviation, Dubai-based Shahzada Dawood, his son Suleman, French explorer Paul-Henri Nargeolet, and OceanGate’s founder and CEO Stockton Rush were onboard. OceanGate, based in Washington State, uses advanced technologies such as next-generation crewed submersibles and launch platforms to increase deep ocean access.