As the search intensifies for the submersible that lost contact with its mother ship on Sunday as it descended to the wreck of the Titanic, many are wondering how deep the ocean is and what exactly ...

The ocean is far deeper than most people realize, holding secrets and mysteries that continue to astonish scientists and explorers. Covering more than 70% of the Earth’s surface, the ocean is not only ...

The submersible vehicle that was lost at sea is part of a relatively new effort enabling tourists and other paying customers to explore the depths of the ocean, the vast majority of which has never ...