The marine biologists of the Schmidt Ocean Institute are a busy bunch. Over the last few years, scientists aboard the ...

We took a real submarine more than 500 meters (1640 feet) below the surface — and what we saw was incredible. From total ...

In the mesmerizing footage, captured via an autonomous submersible known as ROV SuBastian, the Goliath sea jelly is seen ...

A rare giant phantom jellyfish was filmed off Argentina’s coast during a deep-sea expedition that uncovered extraordinary ...

Submarines have been diving deeper and deeper into the ocean's depths, with undersea explorers looking to dive deeper than ...

When most of us look out at the ocean, we see a mostly flat blue surface stretching to the horizon. It’s easy to imagine the sea beneath as calm and largely static – a massive, still abyss far removed ...

Large subduction-zone earthquakes leave scars on the continental slope in the deep sea.

Today, we are going to talk about sea turtles. Well, actually, about a real story of how a group of Italian rock climbers found strange grooves in the rock ...

The USS Snook (SS-279) was one of the most successful American submarines of World War II, sinking dozens of enemy ships ...

Taiwan’s first indigenous submarine, Hai Kun, continued sea trials yesterday, even as its long-delayed ...

Taiwan's first indigenous submarine, the Hai Kun (海鯤), or Narwhal, began its sixth sea trial today, drawing many military ...

Taiwan's first indigenous submarine, the Hai Kun (海鯤), or Narwhal, this morning conducted its first submerged sea trial and was expected to dive to a snorkel depth of 10m to 20m.