From a protected cove on Long Island, Dean’s Blue Hole—Earth’s deepest known underwater cave—plunges more than 600 feet into darkness. The entry to South Passage is decorated by ...

Our goal was to map one of the world’s unique ecosystems: underwater caves, aka “blue holes.” Their biogeochemistry creates hot spots for extremophile life-forms. They also contain fossils ...

This recall involves certain Sublue Mix underwater scooter lithium-ion batteries and replacement batteries. The scooters are ...

Germany has launched an underwater stealth drone to confront Russian and Chinese saboteurs in the Baltic Sea. Dubbed ‘Blue Whale’, the new weapon is the latest attempt to stand up to the two ...