Search and rescue crews are frantically scanning more than 12,500 feet of open water near the historic site of the Titanic wreckage as five people are missing aboard a submersible.
British billionaire and famous explorer Hamish Hamish Harding is among the five people trapped on the tourist submersible that had been on a venture down to the site - before the crew on board made no contact with the support crew for more than eight hours.
Depending on where the submersible was when it lost contact with OceanGate, the company in charge of the mission, it could theoretically be anywhere within a 370-mile stretch of the Atlantic Ocean between the wreck and the Newfoundland, Canada, coast.
