One ambitious company has a plan to establish a colony of adventurous humans beneath the sea, but scientists have some doubts ...

These entrepreneurs are working to harness tidal power as a reliable, scalable source of energy. But there's one big problem.

An underwater volcano near the US coast, named Axial Seamount is showing signs of activity that suggest it might erupt ...

Dead woman said to be experienced diver with instructor qualifications, family devastated over underwater tragedy.