A coast guard panel listened to four days of evidence that has raised questions about whether warning signs before the disaster were ignored.

Patrick Lahey, the co-founder of Triton Submarines, OceanGate’s rival, told Stockton Rush about concerns he had with the ...

Last year, five people hoping to view the Titanic wreckage died when their submersible imploded in the Atlantic Ocean.

The passenger testified that the mission was scrapped because the sub couldn't navigate, and was swimming in circles.