Seafloor & Below


Origin of Massive Methane Reservoir Identified

New research provides evidence of the formation and abundance of abiotic methane—methane formed by chemical reactions that don’t involve organic matter—on Earth and shows how the gases could have a similar origin on other planets and moons, even those no longer home to liquid water.

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New Deep-Sea Coral Species Discovered

The New York Times

New ‘bubblegum’ corals found in Northeast Canyons and Seamounts National Monument during human-occupied submersible dives.

Ocean Trenches

What are ocean trenches? Ocean trenches are steep depressions in the deepest parts of the ocean [where old ocean crust…

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Seamounts

Mountains rising from the ocean seafloor that do not reach to the water’s surface.

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Natural Oil Seeps

As much as one half of the oil that enters the coastal environment comes from natural seeps of oil and natural gas.

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Seafloor & Below

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From plate tectonics to underwater mountain ranges spanning the globe, the seafloor and below encompasses a large field.

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Hydrothermal Vents

What are Hydrothermal Vents? In 1977, scientists made a stunning discovery on the bottom of the Pacific Ocean: vents pouring…

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Sentry Completes Its 500th Dive

Sentry Completes Its 500th Dive

WHOI’s free-swimming robot Sentry completed its 500th dive on October 16, 2018, off the Pacific Coast of Costa Rica. The autonomous underwater vehicle has used its sonar systems to help scientists map the seafloor, track the Deepwater Horizon oil spill, locate the voyage data recorder on the sunken El Faro cargo ship, and carry out advanced research on many other missions to help us better understand our ocean and our planet.

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How Is the Seafloor Made?

How Is the Seafloor Made?

An ultrasound for the Earth? Using sound waves, a graduate student peers into the crystalline texture of the tectonic plates that cover our planet’s surface.

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