TOKYO -- The world's deepest-diving submarine has disappeared in the choppy Pacific Ocean off Japan, a setback to deep-sea research on everything from earthquakes to rare bacteria. Kaiko, a bright ...

Key Points - Russia's Losharik (AS-31), a unique deep-diving nuclear-powered special missions submarine, is reportedly ready for sea trials in 2025 after a nearly five-year repair following a fatal ...

The world was gripped by horror in 2023 as the OceanGate submarine met its tragic fate. The submersible, per CBC, was designed to reach dizzying depths of up to — or rather down to — 4,000 meters. Its ...

During the height of the Cold War, the rivalry between the United States and the Soviet Union spurred several technology-oriented races where both countries were trying to outdo the competition. The ...

Tourist submarines offer a way for passengers to explore the ocean without having to train as a diver or grow gills. Staying dry is a nice perk, but the real appeal is seeing sea life up close without ...