Researchers said they discovered white smokers discharging saline fluid at the bottom of the Dead Sea. Dr Christian Siebert, a hydrogeologist at the Helmholtz Centre for Environmental Research, said ...

Black represents those areas where we have yet to get direct echosounding measurements of the shape of the ocean floor. Blues correspond to water depth (deeper is purple, shallower is lighter blue).

Off the coast of Chile and Peru, along the entire western length of South America, the seafloor takes a sharp, steep plunge ...