![Underwater noises in search for the Titan: Are they a sign of life or just noise from the Titanic wreck?](https://cdn.newsserve.net/ONPglobe256.png)
Underwater noises in search for the Titan: Are they a sign of life or just noise from the Titanic wreck?
Underwater noises heard during the frantic search for the submersible Titan have sparked fresh hopes of finding the missing vessel - but what do experts think?
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