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seafloor

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。

Foto olhando para o fundo do mar, mostrando pedaços arredondados de lava negra sobre argila vermelha.
Posted inNews

Uma Ilha Tropical Há Muito Perdida Fica no Litoral do Brasil

by Erin Martin-Jones 25 October 202425 October 2024

Um platô vulcânico submerso no sudoeste do Atlântico foi uma ilha tropical há 45 milhões de anos.

Bubbles bubble up in the ocean.
Posted inNews

Model Suggests Undersea Mountains Help Mix the Global Ocean

Tim Hornyak, Science Writer by Tim Hornyak 24 September 202424 September 2024

Seamounts may play a significant role in ocean turbulence and the upwelling of deep waters.

A cross section of a core taken from Earth’s mantle, is seen under a microscope.
Posted inNews

Lost City’s Plumbing Exposed by the Longest Mantle Core Ever Drilled

by Nathaniel Scharping 12 September 202412 September 2024

The core, which is 71% complete, reveals millions of years of geologic history and the plumbing underlying hydrothermal vents.

A ship traveling on the ocean is seen in silhouette. The sky is blue with some wispy clouds, and the sea is reflecting lots of sunshine.
Posted inResearch Spotlights

Exploring an Underwater Volcano from 16,000 Kilometers Away

by Nathaniel Scharping 12 September 202419 November 2024

Measurements of Hunga volcano’s crater continued for months after its 2022 eruption.

A photo of a large orange buoy on a boat with several people gathered around it
Posted inNews

Scientists Are “Gobsmacked” by the Variability of Seafloor Currents

by Andrew Chapman 11 September 202411 September 2024

The speed and direction of deep currents off Mozambique’s coast are more subject to change than scientists expected.

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