Transparent-faced fish glide through the murky depths, snow-like detritus drifts from above, and soft sponges emerge from the ...

Challenger Deep, the lowest point in the deepest canyon on Earth, lies 35,876 feet below sea level at the southwestern extreme of the Mariana Trench (6.8 miles, or 10.9 kilometers).

Just how deep does the ocean go? Way further than you think. This animation puts the actual distance into perspective, showing a vast distance between the waves we see and the mysterious point we ...

Known as the Challenger Deep, it is 35,768 to 36,037 feet deep – almost 7 miles (11 kilometers). Ocean scientists like me study the sea floor because it helps us understand how Earth functions.

Here’s a look at the ocean where the Titanic went down on April 14, 1912. According to NOAA, the average ocean depth is 12,566 feet. The greatest ocean depth, however, is 36,200 feet.

We have visually explored less than 0.001 percent of the deep sea floor. To put that in perspective, 66 percent of the planet is deep ocean, and 99.999 percent of that ocean is unknown to us. Like ...

When deep-sea mining begins, China — which already controls 95 percent of the world’s supply of rare-earth metals and produces three-quarters of all lithium-ion batteries — will extend its ...