Lightning strikes are more frequent when Earth encounters a polarity switch in the solar magnetic field.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
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How Saturn Alters the Ionosphere of Titan
New research shows that Saturn's powerful magnetic field changes the atmospheric chemistry of its largest moon, Titan.
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Scientists Detect Wisps of Wind in Space
In the near vacuum of low-Earth orbit, there are still faint tendrils of air—but measuring them is very tricky. A new study comparing two methods will make it a little easier.
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Climate Models Predict Diverse Arctic Ocean Shipping Routes
As ice melts, multiple models yield more detailed route predictions than any single model alone.
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Tracking Long-Term Changes in Global Sea Level Extremes
Large-scale climate change may drive trends in extreme sea level events.
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Trace Gas Exchange Offers Key Insight into Atmospheric Processes
Eddy covariance fluxes provide insight into interactions of emissions, chemistry, deposition, and transport in the atmosphere.
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Decoding the Radio Transmissions of Shooting Stars
Spectacular fireball meteors don't just light up the night sky—recent observations show they also emit mysterious high-frequency radio waves. Now scientists think they understand why.
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Forecasting Eruptions at Restless Calderas
Scientists review decades of data on swarms of earthquakes, surface deformation, degassing, and microgravity changes around calderas to determine when such forms of unrest may result in eruptions.
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A Big Climate Driver in a Small Ocean Basin
Scientists review Atlantic Ocean circulation variability and its applications for predicting decadal climate variation.
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Satellites Reveal the History of the Moon's "Frigid Sea"
The history of aluminum-rich basalts in Mare Frigoris may help scientists better understand the evolution of the lunar mantle.