The power of environmental DNA (eDNA) to help us decode the mysteries of the deep is undeniable. The ability to detect marine species by the DNA they leave behind in water samples has revolutionized ...

While marine life seen during the tenth dive of the 2026 American Samoa ROV + Mapping Exploration expedition wasn’t plentiful, it was present. From amphipods clinging to a dead sponge stalk to sea ...

Throughout the expedition, I have worked alongside the mapping team to collect and process hydrographic data. We ensure the quality of the data before sending it to shore to be made available for ...

Red light does not reach ocean depths, so deep-sea animals that are red actually appear black and thus are less visible to predators and prey. Sunlight contains all of the colors of our visible ...

The Pacific Ocean is the largest and deepest ocean basin on Earth, covering more than 155 million square kilometers (60 million square miles) and averaging a depth of 4,000 meters (13,000 feet).

While the Okeanos Explorer is at sea, live video is streamed to shore. This section contains information on how to view the video streaming from the ship and instructions to set up two-way ...

Our planet is heated by solar radiation, incoming energy from the sun. Because the Earth is round, the angle of the surface relative to the incoming radiation differs with latitude. At low latitudes, ...

Disturbances such as waves caused by strong hurricane winds do not reach the deep ocean; however, churning of surface waters can result in more food falling to the seafloor While the physical effects ...

Multibeam sonar is a type of active sonar system used to map the seafloor and detect objects in the water column or along the seafloor. The multiple physical sensors of the sonar – called a transducer ...

With a total area of about 14 million square kilometers (5.4 million square miles), the Arctic Ocean is roughly 1.5 times the size of the United States. In addition to being the smallest, the Arctic ...

An acoustic Doppler current profiler, or ADCP, is a device that uses sound waves to measure the speed and direction of currents throughout the water column. Understanding how water in the ocean moves ...