Scientists capture the first complete image of Earth’s luminous geocorona and prove its ecliptic north–south symmetry.
Geophysical Research Letters
Posted inEditors' Highlights
New Observations of Mysterious Radar Echoes
Exploring the relationship between solar extreme ultraviolet radiation flux and 150-km radar echoes.
Posted inResearch Spotlights
Rethinking How Water Circulates Between the Oceans and Land
A reexamination of the global water cycle shows that tropical coastlines exert a profound influence on atmospheric water circulation by wringing water vapor from the atmosphere.
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Humans to Blame for Higher Drought Risk in Some Regions
New observations and analysis dispel remaining doubts that anthropogenic climate change is expanding dry areas in northern midlatitudes.
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Mapping a Valparaíso Earthquake from Foreshock to Aftershock
Using seismic data recorded along the Chilean coast, scientists retrace the development of a recent earthquake.
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Reducing Errors in Satellite-Derived Arctic Sea Ice Thicknesses
Salty snow throws off satellite-based estimates of Arctic sea ice thickness by up to 25%. A new method seeks to fix that.
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Where Did the Water Go on Mars?
Primordial solar storm conditions are believed to have significantly enhanced the loss of water and other atmospheric volatiles in Mars’ history.
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How Earth’s Orbit Affected Ice Sheets Millions of Years Ago
A new study of the late Pliocene era could help scientists predict future sea level rise.
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Sloping Topography and Oceanic Surface Modes
An accurate understanding of the influence of ocean bottom topography helps to diagnose the velocities of subsurface currents.
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Comparing Craters
An analysis suggests that craters degrade faster on Mercury than the Moon, raising questions about landscape evolution on different planetary bodies.