There were underwater caves nearby, set into a small cliff ... and other mysterious structures—may be hidden all around the ocean floor. They are places for studying how the world is always ...

The UK company that designed the modular underwater habitats says they could be used for everything from marine studies and tourism to security. View on euronews ...

Now, we continue our story from Radio Diaries about the Navy's Sealab program. As we heard elsewhere on today's show, back in the 1960s, the Navy built a series of underwater habitats under the ...

Beneath the land surface of the Bahamas, the underwater caves known as blue holes stretch for hundreds of miles in all directions. Today, these labyrinthine passages host a variety of tiny sea ...

He adjusts his mask, swallows a big breath of air and then dives into the sea. And he won’t come ... In the film, he gracefully navigates underwater caves and leaps off rocks and coral as ...

but the recent combination of advances in underwater-mining technologies and steep increases in the value of gold and other precious metals has triggered an aggressive push to mine the deep ocean ...