Viking 2 detected two possible marsquakes in 1976. New analysis links one to the same region where InSight recorded nearly 1,000 marsquakes decades later.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
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Using Machine Learning Techniques for Polar Vortex Predictions
A new model accurately reproduces aspects of polar vortex behavior, extracting indicators of imminent vortex collapse and accompanying frigid weather in North America and Europe.
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Auroral Structure Could Be Caused by Bouncing Electrons
High-resolution optical observations of aurorae show fluctuations and structuring that could be explained by interactions between electrons and a plasma phenomenon called Alfvén waves.
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The Ambiguous Costs of Climate Change
To put a price tag on climate change, some approaches focus on whether it made an event more likely, whereas others focus on whether it made an event more severe and damaging. A new study examines the validity of both approaches.
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Clouds over the Highest Mountains Dance a Little Differently
Clouds over the Tibetan Plateau and the Andes are growing colder and higher than other clouds in response to climate change. That could affect local hydrology and radiation.
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Measuring Deep-Ocean Oxygen with Microscopic Magnetic Fossils
A global comparison of microbial magnetic minerals unlocks a new tool for glimpsing the future of oxygen in Earth’s changing oceans.
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Patchier Permafrost Is Linked to More Intense Hillslope Erosion
Arctic landscapes with spots of disconnected permafrost erode faster than those with continuous permafrost, a new study finds.
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The Ocean Circulation That Persists Even After a Key AMOC Component Fails
A new study suggests cross-hemispheric overturning circulation could continue for centuries, even as North Atlantic Deep Water formation shuts down.
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Mapping Childhood Lead Exposure Risk in the United States, Neighborhood by Neighborhood
A researcher uses housing and poverty data to identify locations where children are more likely to be exposed to lead.
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Shooting Light Pulses Down a 3-Kilometer Borehole Could Illuminate Seismic Hazards
Borehole distributed acoustic sensing (DAS) offers a more precise way to measure small earthquakes, if appropriate care is taken.