Ukraine's latest wave of naval strikes has turned a niche innovation into a strategic choke point on the Black Sea, where ...

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Could lumpy metallic rocks in the deepest, darkest reaches of the ocean be making oxygen in the absence of sunlight? Some scientists think so, but others have challenged the claim that so-called "dark ...

Ukrainian sea drones on Wednesday hit and disabled a tanker involved in trading Russian oil as it sailed through Ukraine's ...

The winter in Moscow is as dark and nasty as ever, so at the end of November, I made the 1,500-kilometer (930-mile) trip south to Krasnodar region, a much ...