Rescue teams from the U.S., Canada and France continue to race against time to locate the Titan submarine that disappeared Sunday during a mission to search for the wreckage of the Titanic 900 nautical miles east of Cape Cod, Massachusetts. The search has intensified as the US Coast Guard predicts that the submarine’s oxygen supply will run out at 7:08 am. ET Thursday (14:08 Greek time), a spokesperson said yesterday afternoon.

According to OceanGate’s specifications, the Titan submarine has a 96-hour oxygen supply, with the Coast Guard estimating Tuesday morning that its crew of five had 41 hours left before running out of oxygen. This fact led the rescue teams to increase their efforts, scanning an area twice the size of Connecticut and a depth of more than 4,000 meters.

The search yesterday focused on an area where a Canadian aircraft detected “underwater noises”. The sounds prompted searches by unmanned aerial vehicles to be redirected, the US Coast Guard said early Wednesday, noting that the effort so far “has yielded negative results.”

“We don’t know what the noises are to be honest,” said First District Coast Guard Master Chief Jamie Frederick. “The goal will be to continue searching in those areas where the noises were detected…”.

The Woods Hole Oceanographic Institution warned that it is “very difficult” to discern the source of the noises in the vast ocean, but the findings have been sent for analysis and results on the origin of the noises are expected today.

The Polar Prince, the research vessel supporting Sunday’s tourist mission that accompanied the missing Titan, also remains at the scene of investigations.

“The equipment that has been mobilized for this is the best in the world, the most capable in the world,” Horizon Maritime President Sean Litt told reporters on Wednesday. “We have to hope. I think as you know, there is still life support available on the submarine and we will continue to hold out hope until the end”.

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The sound detected in the search area for the missing sub is described as “banging noises,” Carl Hartsfield of the Woods Hole Oceanographic Institute says, but investigators haven’t confirmed it’s the sub.

“They have to eliminate potential man-made sources other than the Titan.” pic.twitter.com/BEKXBnwPJ4

— CBS News (@CBSNews) June 21, 2023

At about 12,500 feet below sea level, the remains of the Titanic are in a “very forbidding” environment, Carson said, adding “at such a depth there is deathly silence. There are no currents. It’s just an incredible, dark, quiet place.”

This video explains exactly what is going on with the Titanic tourist sub.
They have around 14 hours of oxygen left.
Truly terrifying. #Titan #titanicsubmarine pic.twitter.com/C5J4xY9iR4

— Paul Golding (@GoldingBF) June 21, 2023