The Denmark Strait cataract, located between Iceland and Greenland, is technically the largest waterfall on Earth, though it remains entirely hidden underwater. As reported byLive Science ...

Over 11,500 feet tall, this submerged waterfall dwarfs every land-based cascade on Earth. ‘They can make 10 floors in 1 day’: The reason China’s speed terrifies the world 'The Metal that ...

Beneath the surface of the Southern Ocean, vast volumes of cold, dense water plunge off the Antarctic continental shelf, cascading down underwater cliffs to the ocean floor thousands of meters below.