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seafloor

Fine-grained sand on the ocean floor, marked by the rippling movement of currents
Posted inResearch Spotlights

Mapping the Ocean Floor with Ancient Tides

Aaron Sidder, freelance science writer by Aaron Sidder 6 May 20256 May 2025

A new study uses a paleotidal model to trace the formation of carbon-rich mud deposits over thousands of years.

Small plastic fragments on sand and stones.
Posted inNews

Avalanches of Microplastics Carry Pollution into the Deep Sea

by Grace van Deelen 23 April 202523 April 2025

Scientists observed a once-theorized process ferrying microplastics into the deep ocean.

Two people wearing hard hats are silhouetted by the Sun rise in the distance as they look out over the ocean from a research vessel.
Posted inScience Updates

Unlocking Climate Secrets of Hawai‘i’s Drowned Reefs

by Jody M. Webster and Christina Ravelo 11 April 202511 April 2025

Researchers set sail to study sea levels, climate, ecosystem responses, and volcanic histories over the past 500,000 years, using an innovative seabed drill to sample fossilized reefs off Hawai‘i.

View from afar of a blue and white research vessel next to an iceberg.
Posted inNews

Thriving Antarctic Ecosystem Revealed by a Departing Iceberg

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 31 March 202531 March 2025

A quick-calving iceberg gave scientists a rare glimpse into what hides beneath Antarctic ice.

A glacier with ripples on top of it, as seen from a plane. A blue sky is visible.
Posted inResearch Spotlights

A Seafloor Spreading Slowdown May Have Slashed Sea Levels

Sarah Stanley, Science Writer by Sarah Stanley 24 February 202524 February 2025

Between 15 million and 6 million years ago, a drop in ocean crust production may have lowered sea level by 26–32 meters.

The Alvin submersible hovers over and illuminates the seafloor near the rocky towers of a hydrothermal vent site.
Posted inScience Updates

An Upgraded Alvin Puts New Ocean Depths Within Reach

by Kenna Harmony Rubin, Anna P. M. Michel and S. Adam Soule 31 January 202513 March 2025

The newly retooled submersible, which has already returned fascinating new findings from Earth’s watery depths, is opening more of the deep ocean to direct human exploration.

An image of Earth’s globe flattened out, with a detailed map of the ocean floor
Posted inNews

Satellite Measurements Make Major Seafloor Map Improvements

by Emily Dieckman 12 December 202410 January 2025

Though ship-based sounding has mapped some areas of the ocean floor in higher resolution, researchers have used SWOT data to create a detailed new map of the seafloor, including thousands of previously undetected small seamounts.

Earth’s mid-ocean ridge system, shown in mostly blue and green.
Posted inNews

Mid-Ocean Ridges Could Be Dispersing Thermophilic Bacteria

by Miriam Bahagijo 12 December 202412 December 2024

Scientists suggest that two strains of endospores located more than 4,000 kilometers away from one another originated in the same place: along the Mid-Atlantic Ridge.

A colorful map with data points.
Posted inEditors' Highlights

Compositional Anomalies Complicate Our Model of Mantle Convection

by Thorsten W. Becker 20 November 202420 November 2024

A new study expands on recent research which suggests that oceanic crust accumulates in the mid-mantle. The new seismological constraints advance our understanding of thermo-chemical planetary evolution.

一艘航行在海上的船的剪影。蔚蓝的天空飘着几朵薄云,大海反射着大量阳光。
Posted inResearch Spotlights

从一万六千公里外探索水下火山

by Nathaniel Scharping 19 November 202419 November 2024

在2022年汤加火山喷发后,对其火山口的测量持续了数月。

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Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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