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

Welcome to our new documentary 2025 where we dive into the mysterious depths of the Mariana Trench, where an eerie discovery awaits. From bizarre creatures to haunting artifacts, the ocean's deepest ...

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 ...

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 ...