OceanGate's Dr Steve Ross, chief scientist of the 2022 Titanic survey expedition, on how the vessel functions, plus Submarine escape expert Steve Thorpe, from marine survival company Survitec, explains the difficulty of the OceanGate submersible search and rescue operation. The crew are believed to have between 70 to 96 hours of air. Bringing the vessel back to the surface ‘the only way’ to rescue the crew. North Atlantic conditions ‘unpredictable’. Also in this episode:

• Bangor University’s Professor Yueng-Djern Lenn on the ‘severe’ marine heatwave around the seas of the British Isles
• Reddit hackers demand $4.5 million ransom and API pricing changes
• Pre-historic long-necked reptiles were decapitated by their predators
• The ‘world’s first’ air fryer shopping aisle

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