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lava & magma

Map of the moon's surface from the study.
Posted inEditors' Highlights

Timing the Global Expansion on the Moon

by Laurent G. J. Montési 11 October 202411 October 2024

A new analysis of the relation between randomly oriented linear gravity anomalies and two large craters on the Moon implies that the gravity anomalies formed over a long period of time.

A sphere with a mottled orange, red, yellow, and gray surface appears bright against a black background.
Posted inResearch Spotlights

How Did Magma Oceans Evolve on Early Earth and Mars?

Sarah Stanley, Science Writer by Sarah Stanley 10 October 202410 October 2024

New insights into the early timelines of rocky planets are emerging, thanks to clues from iron chemistry and primordial atmospheres.

A desert mountain range at a distance.
Posted inNews

Iron-Rich Volcanoes Hold Hidden Rare Earth Element Reserves

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 4 October 202419 December 2024

Experiments show how concentrations of rare earth elements, critical to the green energy transition, might be hiding in plain sight in iron-rich deposits around the world.

An artist’s depiction of the Moon split in half, showing the mantle, the crust, an inner and outer core, and a low-viscosity zone between the mantle and the core
Posted inResearch Spotlights

The Moon’s Tides Hint at a Melty Lunar Layer

Sarah Stanley, Science Writer by Sarah Stanley 30 September 202419 February 2025

New lunar gravity measurements support the idea that a partially molten mantle layer is sandwiched between the rest of the Moon’s mantle and its core.

The Tajogaite volcano erupts with lava and gases in 2021.
Posted inScience Updates

Volcanic Anatomy, Mapped as It Erupts

by Vittorio Zanon and Luca D’Auria 27 September 202423 June 2025

Testing during the 2021 Tajogaite eruption on La Palma demonstrated the value of near-real-time petrological analyses as a supplement to seismic and geochemical data for eruption monitoring.

The orange glow from erupting lava illuminates the area around the summit of Kīlauea volcano under a star-filled night sky.
Posted inScience Updates

An Unprecedented Experiment to Map Kīlauea’s Summit Magma System

by Roger Denlinger, Daniel R. H. O’Connell, Guoqing Lin, Steve Roecker and Ninfa Bennington 18 September 202423 September 2024

Dozens of researchers deployed nearly 2,000 seismic stations—and a T-Rex—to better illuminate subsurface structure and magma storage below the summit of the highly active volcano.

Vistas desde el aire durante la noche, varias brillantes fuentes de lava estallan a lo largo de una fisura lineal, con columnas teñidas de naranja elevándose sobre ellas. Las luces de una ciudad están a lo lejos.
Posted inResearch Spotlights

En una rara oportunidad, investigadores observan la formación de los valles islandeses

Sarah Stanley, Science Writer by Sarah Stanley 9 September 20249 September 2024

Durante el período previo a las recientes erupciones volcánicas cerca de la ciudad de Grindavík, científicos documentaron la formación de grabens en tiempo real.

Un científico en un traje plateado inserta un tubo largo de metal en la lava incandescente naranja y en la roca gris obscuro.
Posted inNews

¿Qué tan líquida es esa lava?

by Rebecca Owen 19 August 202419 August 2024

Un nuevo dispositivo ayuda a los científicos a medir la viscosidad de la lava durante los derrames activos.

Viewed from the air above at nighttime, several bright fountains of lava erupt along a linear fissure, with orange-tinged plumes rising above them. The lights of a city are in the distance.
Posted inResearch Spotlights

In Rare Opportunity, Researchers Observe Formation of Icelandic Valleys

Sarah Stanley, Science Writer by Sarah Stanley 7 August 20249 September 2024

During the lead-up to recent volcanic eruptions near the city of Grindavík, scientists documented graben formation in real time.

A computer simulation on a repeat loop where the viewer approaches a circular pit on the Moon, descends vertically, and then levels out to see an underground cave.
Posted inNews

Lunar Lava Tube Revealed Beneath Collapsed Pit

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 2 August 20242 August 2024

The Sea of Tranquility is home to at least one lunar lava tube, which could preserve a pristine and unweathered record of lunar volcanism.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

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An Ecosystem Never Forgets

19 December 202519 December 2025
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Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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