The ocean is divided into three zones based on depth and light level. Although some sea creatures depend on light to live, others can do without it. ‘Photic’ is a derivative of ‘photon,’ the word for ...

An underwater explosion, also known as an UNDEX, is an explosion beneath the surface of water. The type of explosion may be chemical or nuclear. They are categorised in accordance with their depth ...

A venting black smoker emits jets of particle-laden fluids. The particles are predominantly very fine-grained sulfide minerals formed when the hot hydrothermal fluids mix with near-freezing seawater.

Oceans, seas, lakes, rivers and streams hide a treasure trove of heritage - from shipwrecks and artworks to everyday objects. Today, however, these underwater artefacts are in danger, due to looting, ...

Critical underwater infrastructure that underpins the global economy is becoming increasingly vulnerable, and governments are starting to assess how they can be protected. "It's the changing threat ...