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Journal of Geophysical Research: Space Physics

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Annotated graphic of a solar wind discontinuity
Posted inResearch Spotlights

Understanding the Turbulent Nature of the Solar Wind

by Mark Zastrow 13 June 20194 May 2022

Sometimes the conditions in the solar wind can change dramatically over short distances. Satellite observations of these features show that they’re more complex than previously thought.

Aurora over Lofoten, Norway
Posted inResearch Spotlights

Data Mining Reveals the Dynamics of Auroral Substorms

by Mark Zastrow 31 May 201916 November 2021

An analysis of 5 decades of satellite data has pieced together the most comprehensive picture yet of substorms, the magnetic disturbances that cause surges of aurora.

The Tvashtar volcano erupts on Io
Posted inResearch Spotlights

No Underground Magma Ocean on Jupiter’s Fiery Moon?

by E. Underwood 22 May 201911 May 2022

A new study suggests alternative explanations for Io’s unusual magnetic field.

Auroras seen from the International Space Station
Posted inResearch Spotlights

Bringing Clarity to What Drives Auroras

by Mark Zastrow 24 April 201911 August 2022

A new classification scheme helps researchers distinguish what accelerates the electrons that create auroras.

An artist’s rendering of the Mars Express spacecraft
Posted inResearch Spotlights

The Accidental Particle Accelerator Orbiting Mars

by Mark Zastrow 3 April 201920 October 2021

The radar aboard the Mars Express spacecraft can generate ion beams arcing through space above the planet, which could lead to a new way of studying the plasma surrounding it.

A view of the observatory at Mount Abu
Posted inResearch Spotlights

What Drives Temperature Inversions in the Mesosphere?

by E. Underwood 27 March 201916 March 2023

A study of nightglow over India reveals that gravity waves are less important than previously thought.

A view of the aurora-like phenomenon dubbed STEVE
Posted inResearch Spotlights

Probing the Origin of a New Celestial Phenomenon

by Terri Cook 15 March 201921 February 2023

The first statistical study of STEVE events suggests that the appearance of these narrow ribbons of light is closely correlated with violent disturbances in Earth’s magnetosphere.

Posted inEditors' Highlights

Plasma Density Distribution in Mercury’s Magnetosphere

by Y. Wang 27 February 20197 March 2022

A new measurement of plasma density distribution in Mercury’s magnetosphere obtained from observations of field line resonance events provides necessary constraint for many planetary science issues.

Winds in the thermosphere
Posted inEditors' Highlights

Windy Weather in the Thermosphere

by A. Rodger 20 February 201923 January 2023

The weather in the thermosphere includes winds that buffet spacecraft as they orbit the Earth, but how well can these winds be modeled?

Posted inEditors' Highlights

Jupiter’s Stressed Out Magnetosphere Causes Aurora and Heating

by Michael W. Liemohn 2 January 201918 January 2023

Force imbalance between Jupiter’s ionosphere and magnetosphere leads to wave generation to release this stress, but the waves also accelerate particles, causing aurora and heating.

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Features from AGU Publications

Research Spotlights

Proposed Experiment Could Clarify Origin of Martian Methane

12 May 202512 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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