Stunning Pictures Take You Under the Sea. ... Gross secured his camera to a rock and pointed it to the ocean surface, using a remote timer to take pictures of the sea life in the area.

Scientists have found evidence for oceans' of water locked up in a rare type of blue-colored mineral hidden beneath Earth's surface in the so-called mantle transition zone.

This ocean could be a 62-mile (100 kilometer) thick layer, sandwiched between an icy crust on the surface and another layer of ice below, which is held solid by the enormous pressures.

The top photos from the 2018 Ocean Art Underwater Photo Competition have been released (opens in a new tab), and they depict an alien world (opens in a new tab): a wall of sharks, a ceiling of ...

Striking photos reveal plastic and plankton side-by-side. Hidden just beneath the surface of the ocean is a world where tiny ocean creatures must navigate a dense world of plastic soup.

Tiny ocean zooplankton play a massive role in trapping carbon deep below the surface, offering a hidden buffer against ...

Underwater photos taken at night — when larval fishes migrate to within 200 meters of the ocean surface — reveal colors, body structures and behaviors that could never be seen in preserved ...

Saturn's 'Death Star' moon has a hidden ocean under its surface, scientists say. French researchers cited observations made by NASA's Cassini spacecraft.