Two weeks of public testimony concluded Friday in the U.S. Coast Guard’s investigation to establish what caused the Titan submersible to implode during a deep ocean dive last year, killing all five on board.

Contrary to public reports last year, the passengers probably had no idea that the vessel was about to implode.

The U.S. Coast Guard has officially released new footage from the seafloor, providing the first comprehensive look at the wreckage of the Titan submersible. This footage was captured by a remotely operated vehicle (ROV) and offers a chilling view of the debris scattered over 12,