The deep sea begins at about 200 meters below sea level, where light starts to diminish in a region called the twilight zone.

The deep sea refers to the part of the ocean below 200 meters (656 ft.), at which light begins to disappear. Despite making up more than 90% of the Earth’s marine environment, much of the deep-sea ...

If the U.S. wants to secure critical minerals it should invest in mining and processing facilities on home soil rather than ...

Researchers say our understanding of Earth’s largest biome is based on a tiny, unrepresentative sample dominated by just a ...

Bizarre creatures like vampire squid and blobfish make their home in the dark, cold, depths of the deep sea, but most of this watery realm remains a complete mystery. That's because humans have ...

That works out to about 0.001% of the deep sea, according to a study published Wednesday in Science Advances. In other words, 99.999% of the deep sea, defined as deeper than 200 meters ...

There is currently no commercial deep-sea mining happening anywhere in the world, though companies have been pushing for years. They appear to have found a new champion in Trump. In April ...

Deep sea mining has been off limits thus far, both because it's awfully hard, and because governments haven't yet firmed up regulations around extracting minerals offshore. That might soon change ...

Humanity has only explored 0.001% of the deep sea, according to a May 2025 study. Credit - Getty Images The Trump Administration signed an executive order late last month aiming to fast-track ...