Human eyes have only seen a tiny, tiny, tiny fraction of the areas of the world that are covered by deep water. Scientists ...

This heatmap shows the concentration of known deep-sea dives with visual observations in U.S. exclusive economic zones.

Researchers collected more than 43,000 records of dives and assessed the photos and videos to determine how much of the bottom has been seen by humans.

The deep sea refers to the part of the ocean below 200 meters (656 ft.), at which light begins to disappear. Despite making ...

Deep-sea submersibles have been diving for decades, but records show that we have still only explored a tiny area of the deep ...

New high-resolution satellite map reveals nearly 100,000 unknown ocean mountains, or seamounts, boosting climate and maritime ...