Possible Positive Sign: 'Banging' Sounds Detected in Search for Missing Titan Submersible.

Banging sounds have been detected underwater near where the Titan submersible went missing while on its way to view wreckage from the Titanic. The Canadian officials on board a specialized aircraft were the ones that detected the banging underwater. The news comes as there is less than 30 hours of breathable air left. The Joint Rescue Coordination Centre is working to find an underwater remote-operated vehicle through partner organizations to possibly assist. The Titan weighs 23,000 pounds and can reach a depth of nearly 2.5 miles underwater.