Footage captured by a previous expedition from OceanGate has one of the clearest ever looks we've had at the wreckage of the Titanic.
The submersible Titan has been missing since it failed to check in around an hour and 45 minutes into an expedition to the shipwreck on 18 June.
There are five people on board the missing vessel, British billionaire Hamish Harding; French maritime expert Paul-Henri Nargeolet; Shahzada Dawood and his son Sulaiman; and OceanGate CEO Stockton Rush.
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Efforts to find them have located 'banging noises' at regular intervals but time is running out as the oxygen available to the people on board the Titan is limited.
Even if they've managed to make it back to the surface they won't be able to get out as the door requires someone on the outside to open it.
The purpose of the journey had been to venture down beneath the waves to the wreckage of the famous ship Titanic, which sunk on her maiden voyage after striking an iceberg.
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Ever since then, and thanks in no small part to some popular movies, interest in the wreckage of the Titanic has been high.
Actually getting down to where the remains of the ship lie on the sea bed is difficult and that's where OceanGate and their submersible came in.
They've made multiple trips down to the Titanic before, and in 2022 they captured extraordinary footage of the ship, over a century after it sunk into the sea.
While the ocean claimed and warped the once mighty vessel there are still plenty of recognisable parts to the Titanic, from the railings on the prow to the great chains which still lie across the deck.
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The passengers who boarded the submersible Titan in the hopes of diving down to the wreckage of the Titanic had to sign a waiver before their expedition to acknowledge that they understood and accepted the risks of what they were doing.
Previous passengers who've been on the journey have said they've got lost during their expeditions as the submarine has sometimes been cut off from contact with the surface for a time.
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Shrenik Baldota went on board the Titan last year and said they were 'lost for two-and-a-half hours', while CBS reporter David Pogue said during his journey the submarine 'got lost for a few hours'.
Search and rescue efforts continue as the time before the five passengers run out of air continues to tick down.
Joe Harker