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magnetic fields & magnetism

A starry night sky is visible through a rich magenta haze that smoothly blends into a bright yellow-green band near the horizon. In the foreground a road flanked by low railings and reflectors runs parallel to an electrical power line. Trees and a street sign appear in the distance.
Posted inResearch Spotlights

How the 2024 Solar Superstorm Drained Earth’s Radiation Belt

Sarah Stanley, Science Writer by Sarah Stanley 14 September 202614 September 2026

Researchers dig into storm processes linked to dramatic electron loss from the outer Van Allen belt.

A gif of several cells on the Sun’s surface convecting. The movie is in shades of gold.
Posted inNews

Sharpest-Ever Image of the Sun Shows Small but Mighty Swirls

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 September 202611 September 2026

These tiny instabilities could play an outsized role in energizing the Sun’s corona.

A satellite with Mars in the background.
Posted inEditors' Highlights

Unveiling Atmospheric Circulation on Mars with Magnetic Field Data 

by Andrew Yau 3 September 20261 September 2026

Not only can the magnetometer on NASA’s MAVEN satellite track magnetic fields on Mars; it can also track atmospheric circulation – using machine learning.

Mars.
Posted inEditors' Highlights

The Magnetic Face of Plasma Irregularities on Mars

by Andrew Yau 25 August 202618 August 2026

Plasma density irregularity is nothing new on Mars, but the accompanying magnetic field irregularity observed on NASA’s MAVEN satellite is.

Uranus, a small blue circle in the center of the image, is surrounded by its magnetosphere, a vast magnetic field represented by red and blue lines that fill most of the image. On the left, the magnetosphere curves away to the right, representing the bow shock.
Posted inResearch Spotlights

Getting to Know Uranus’s “Breathing” Bow Shock

Sarah Stanley, Science Writer by Sarah Stanley 7 August 20267 August 2026

The ice giant’s rotation causes daily expansion and contraction of the boundary where its magnetic field slows the solar wind.

A warped image of stars in a black sky.
Posted inEditors' Highlights

A New Pathway for Energy Redistribution in Near-Earth Space

by Alberto Montanari 30 July 202629 July 2026

In situ evidence of bidirectional wave-particle energy transfer enabled by local magnetic-field gradient reveals an inhomogeneity-driven pathway for energy redistribution.

A turtle rests on a bed of coral beneath the ocean.
Posted inResearch & Developments

Turtles May Migrate Using Earth’s Magnetic Field

by Emily Gardner 24 June 202625 June 2026

New research indicates that sea turtles seem to navigate across hundreds of miles of open ocean using Earth’s magnetic field.

A teal-colored sphere appears beyond a dark gray, rocky-textured foreground against a black background. Thin cream-, gray-, and green-colored rings appear to encircle the teal sphere in a roughly horizontal orientation.
Posted inResearch Spotlights

The Speedy Particles That Could Help Us Learn More About Uranus

Sarah Stanley, Science Writer by Sarah Stanley 18 June 202618 June 2026

New simulations suggest that a spacecraft-mounted detector of energetic neutral atoms could improve our understanding of the ice giant’s environment, as well as the relationship between the planet, its magnetosphere, and the heliosphere.

Artist’s illustration showing part of the Sun at left, Earth and its magnetosphere at right, and several spacecraft in between. The spacecraft are networked together by curving, glowing green lines.
Posted inScience Updates

Vast Space, Sparse Data: An AI Answer to Twin Space Weather Challenges

by Savvas Raptis, Manolis K. Georgoulis, Mikhail Sitnov, Anthony Sciola and Simon Wing 11 June 202611 June 2026

Modern machine learning and AI methods can help heliophysics researchers and space weather forecasters overcome limitations from a dearth of observations and the infrequency of extreme events.

两个人,一个穿着黄色背心,一个穿着灰色长袖衬衫,正抬头看着一块岩石表面。
Posted inResearch Spotlights

6.16亿年前波罗的大陆在哪里?

by Saima May Sidik 3 June 20263 June 2026

通过解析古老岩石中的磁信号,我们得以重新认识这块古大陆在埃迪卡拉纪时期的位置。

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Features from AGU Publications

Research Spotlights

How the 2024 Solar Superstorm Drained Earth’s Radiation Belt

14 September 202614 September 2026
Editors' Highlights

Remote Sensing Mitigated the Impact of the 2025 Los Angeles Wildfires

14 September 202614 September 2026
Editors' Vox

In Appreciation of AGU’s Outstanding Reviewers of 2025

14 September 202610 September 2026
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