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Mariana Islands

People in orange work suits crouch next to small clear cylinders with brown material inside.
Posted inNews

In the Deepest Ocean Reaches, a Potent Pollutant Comes to Rest

by Sean Cummings 9 December 20222 March 2023

Surprising amounts of mercury settling into deep-sea trenches may provide a fuller picture of the metal’s path through the environment, but pulling it to the surface is no easy feat.

A global map of subduction zones. The Mariana Trench is near the center with a zoomed-in image of bathymetry.
Posted inResearch Spotlights

Deep Earthquakes Suggest Well-Hydrated Mariana Subduction Zone

by Morgan Rehnberg 10 August 20222 March 2023

Earthquakes as deep as 50 kilometers below the seafloor were detected by 12 ocean bottom seismometers placed around the Challenger Deep.

Andrew Pietruczka ayuda a guiar al piloto de un vehículo operado remotamente que explora sitios submarinos que podrían contener restos de aeronaves de la Segunda Guerra Mundial. Andrew y el piloto miran hacía un arreglo de monitores con información e imágenes enviadas por el vehículo.
Posted inNews

Vehículos robóticos exploran campos de batalla de la Segunda Guerra Mundial en el océano

by James Dacey 5 July 202222 July 2022

El Proyecto Recover usa vehículos autónomos submarinos para identificar, acceder, y captar imágenes de sitios difíciles de alcanzar con restos de la Segunda Guerra Mundial, cerca de las Islas Marianas del Norte.

Andrew Pietruszka helps guide the pilot of a remotely operated vehicle exploring underwater sites that may contain aircraft wreckage from WWII.
Posted inNews

Robotic Vehicles Explore World War II Era Ocean Battlefields

by James Dacey 7 April 20225 July 2022

Project Recover used autonomous underwater vehicles to identify, access, and image hard-to-reach World War II wreckage sites near the Northern Mariana Islands.

Three people listen while a guy in a lei talks animatedly on the deck of a ship
Posted inNews

Limiting Factor Was a Science Opportunity for a Deep-Sea Geologist

Ilima Loomis, Science Writer by Ilima Loomis 3 July 20192 March 2023

For Mariana Trench expert Patricia Fryer, an extreme explorer’s record-setting dive was a chance to retrieve some of the deepest samples ever collected.

Researchers study what happens to ocean eddies when they encounter the Izu-Ogasawara Ridge in the Pacific Ocean.
Posted inResearch Spotlights

What Happens When Ocean Eddies Hit a Wall?

by E. Underwood 24 April 20172 March 2023

A new study tracks two ocean eddies passing over the Pacific Ocean's Izu-Ogasawara Ridge.

A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Heat and Pollution Events Are Deadly, Especially in the Global South

14 May 202514 May 2025
Editors' Highlights

Resilient Solutions Involve Input and Data from the Community

14 May 202514 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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