For years, a strange and unsettling noise coming from the Mariana Trench, the deepest part of the ocean, puzzled scientists.

A signal has been found in the search for missing MH370 after researchers used underwater microphones to detect the Malaysia ...

Some days the high-speed news cycle can bring more questions than answers. WSJ’s news explainers break down the day's biggest stories into bite-size pieces to help you make sense of the news.

Diego and his friends are on their first underwater adventure in Diego’s new release Go, Diego, Go! Underwater Mystery! In this release children will help Lucy the mystery fish, find out what ...

An iPad recovered from the River Thames after five years underwater has helped police arrest three men in an attempted murder case–sounds like a movie plot right? But it isn't. The device, found ...