During the search for the missing submersible, reports emerged of banging sounds underwater on June 20. The noises were heard again on June 21. Secret U.S. Navy listening devices were the first to detect the sounds of what is believed to be when the carbon fiber hull imploded.
As The Independent reported Thursday, Navy experts analyzed the sounds amid the search, with officials describing the noises as “inconclusive.”
While it’s not clear exactly what the noises were, experts have proposed a few theories.
Last Thursday, Carl Hartsfield, an expert with the Wood Hole Oceanographic Institution, told CBS News that the ocean is a “complex place,” and it can be hard to determine the sources of different sounds. The expert suggested that there could be a variety of explanations for the sounds.
Another expert, Jeff Karson, professor emeritus of Earth and environmental sciences at Syracuse University, told The Daily Mail that the sounds could have been a “complicated echo” from the noises bouncing around the Titanic debris field.
“It’s just not bouncing off of one thing. It’s bouncing off a bunch of things. And it’s like dropping a marble into a tin can. It’s rattling around and that would confuse the location,” he said, dismissing the idea that the sounds belonged to the Titan explorers as “wishful thinking.”
“Is it really banging or just some unidentified sound? I think that is a more accurate description right now,” he said.