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American Geophysical Union

Eos is a source for news and perspectives about Earth and space science, including coverage of new research, analyses of science policy, and scientist-authored descriptions of their ongoing research and commentary on issues affecting the science community.

Martian Meteorite Points to Ancient Hydrothermal Activity

22 November 2024 @ 9:07 pm

A spherical reddish planet with white ice at its base appears against a black background.The Red Planet had water—in the form of a hydrothermal system—4.45 billion years ago, new analyses of a Martian meteorite suggest.

Characteristics of Moist Layers over the Tropical Atlantic

22 November 2024 @ 2:00 pm

Graphs from the paper.In a new study, characteristics of elevated moist layers, their seasonality, spatial distribution, structure, and the coupling of mid-tropospheric circulation and convection are examined over the tropical Atlantic.

Why Wildfires Started by Humans, Cars and Power Lines Can Be More Destructive and Harder to Contain

22 November 2024 @ 1:30 pm

Firefighters spray water at a four-story burning brick building.While climate change sets the stage for larger and more intense fires, humans are actively fanning the flames.

The mobility of landslides triggered by earthquakes

22 November 2024 @ 7:25 am

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. A key determinant of the ability of a landslide to cause loss is its mobility. A more mobile landslide has greater potential capacity to impact humans and their assets, and faster movement […]

New Insight into Inland Water Carbon Dioxide Emissions

21 November 2024 @ 2:15 pm

A wide, blue river is bordered on both sides by green mountains.A process-based modeling technique reveals surprising information about carbon emissions from rivers, lakes, and reservoirs across the contiguous United States.

New Rules for Catastrophic River Avulsion

21 November 2024 @ 2:14 pm

Two river channels in a flat, forested landscapeScientists thought two factors influencing river avulsion were unrelated, but new research suggests they may be working in tandem. The findings could help predict new river pathways and improve disaster preparedness.

La corriente de Florida podría estar desacelerándose, pero no por mucho

21 November 2024 @ 2:11 pm

Una ilustración mostrando la Corriente de Florida entre Florida y las BahamasUna corrección necesaria a un conjunto de datos ampliamente utilizados redujo las estimaciones de los científicos de cómo se ha debilitado la circulación oceánica.

The Explosive Origins of Titan’s Rampart Craters

21 November 2024 @ 2:00 pm

Titan's rampart craters.In a new study, volcanic explosions are explored and modeled to understand the possible origins of rampart craters on Titan and determine whether their formation can source atmospheric methane.

The 30 November 2022 Maratea rockfall in southern Italy

21 November 2024 @ 7:32 am

A Google Earth image, collected in April 2023, showing the aftermath of the 30 November Maratea rockfall.The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. On 30 November 2022, the Maratea rockfall occurred on the slopes below  Castrocucco castle in southern Italy. This landslide is the subject of an interesting paper (Santo and Massaro 2024) that has […]

Compositional Anomalies Complicate Our Model of Mantle Convection

20 November 2024 @ 2:00 pm

A colorful map with data points.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.