By studying seismic waves, researchers have found a layer deep beneath the surface of Mars that could contain enough liquid ...

Bizarre creatures like vampire squid and blobfish make their home in the dark, cold, depths of the deep sea, but most of this ...

Deep-sea mining could unleash clouds of debris that threaten a mysterious, vital ecosystem we barely understand.

The deep ocean seafloor is defined as depths of 200 meters or more below Earth’s surface, where oxygen levels are low and sunlight is virtually nonexistent. The study, published in Science ...

Still, there is an even more shocking number: new research suggests 99.999 percent of the deep ocean has never been observed by humans. The deep ocean is understood as any portion of the Earth's ...