The odd sounds, described as "biotwang" noises, sound a bit like sci-fi starships ... gliders to carry out an acoustic survey ...

In 2014, scientists first heard a unique sound coming from the waters around the Mariana Trench. Experts weren't sure what it was, but now a team of researchers led by Oregon State University have ...

Mysterious noises have been coming from the Mariana Trench, the deepest ocean trench, since 2014. Scientists now finally know ...

Only a handful of people have ever visited the bottom of the Mariana Trench, a crescent-shaped depression ... samples and sonar “eyes” that use sound waves to identify surrounding objects ...