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

OceanGate’s former mission specialist Fred Hagen testified Friday that climbing aboard the Titan submersible for a trip to ...

Patrick Lahey, co-founder of an OceanGate competitor, tells a US Coast Guard hearing about his concerns over the Titan sub.

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