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Space Weather

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Solar system diagram showing the Sun’s magnetic field lines and a shaded region representing the bubble of reduced cosmic rays, which sits at roughly a 45° angle extending ahead of and behind Earth as it orbits.
Posted inNews

Moon Mission Data Reveal Unexpected Cosmic Ray “Shadow”

by Matthew R. Francis 4 May 20264 May 2026

A particle detector on the Chang’e-4 lunar lander showed a surprising zone of reduced radiation stretching out from Earth at a strange angle, with potential implications for future astronauts.

Diagram from the article.
Posted inEditors' Highlights

How Space Plasma Can Bend the Laser of Gravitational Wave Detectors

by Jiuhou Lei 24 April 20261 May 2026

A new study reveals how and to what extent laser beams are bent during propagation through space plasma in TianQin, a geocentric space-borne gravitational wave detector.

The stripy, swirly surface of Jupiter is overlaid with a yellow line going from top to bottom, intersecting with a series of blue dots. An inset shows a closer view of the planet.
Posted inResearch Spotlights

Stealth Superstorms Reveal Lightning on Jupiter: Beyond the Superbolt

by Saima May Sidik 23 March 202623 March 2026

On the gas giant, the strength and frequency of lightning appear to be more diverse than previously thought.

Illustration from the article.
Posted inEditors' Highlights

From Measurements to Solar Wind Model Initial Conditions

by Tanja Amerstorfer 6 February 20266 February 2026

A new method shows how solar wind measurements at Earth can be used to define initial conditions for solar wind models to reduce their need for solar magnetic maps and decrease their uncertainty. 

5 journal cover images in front of the Milkyway Galaxy.
Posted inEditors' Vox

Announcing New AGU Journal Editors-in-Chief Starting in 2026

by AGU Publications 12 November 202513 November 2025

AGU is excited to welcome new Editors-in-Chief for five of our journals in 2026.

A series of structures that look like electrical poles extend into the distance on an icy surface. The sky above is full of stars and streaked with green aurorae.
Posted inNews

A Weak Spot in Earth’s Magnetic Field Is Going from Bad to Worse

by Tom Metcalfe 10 November 202510 November 2025

This could be bad news for satellites and spacefarers.

Two images of Earth from afar with lines indicating satellite orbit paths.
Posted inEditors' Highlights

Space Weather Monitoring from Commercial Satellite Mega-Constellations

by Steven K. Morley 4 November 20253 November 2025

Enabling unprecedented monitoring of key electric current systems in low-Earth orbit using commercial satellite mega-constellations advances space weather monitoring.

A rocket launches in front of a clear sky
Posted inResearch & Developments

Trio of Space Weather Satellites Take Flight

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 24 September 202524 September 2025

These three satellites will that study the solar wind and its impacts.

An illustration of an orange-yellow star releasing a massive flare and stellar material along a magnetic loop that connects with a nearby red planet that is outgassing its atmosphere.
Posted inNews

Exoplanet Triggers Stellar Flares and Hastens Its Demise

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 5 August 20255 August 2025

HIP 67522 b can’t stop blasting itself in the face with stellar flares, a type of magnetic interaction that scientists have spent decades looking for.

A bright ring of light surrounds the North Pole in a black-and-white composite satellite image over the Northern Hemisphere, with land areas outlined in black.
Posted inResearch Spotlights

U.K. Space Weather Prediction System Goes Operational

by Saima May Sidik 23 June 202523 June 2025

Officials now have access to a suite of models they can use to head off damage to critical infrastructure.

Posts pagination

1 2 3 … 7 Older posts
Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

Seismic Attenuation Techniques Reveal What Lies Beneath Taiwan

11 May 202611 May 2026
Editors' Highlights

A Digital Twin for Arctic Permafrost Beneath Roads

8 May 202612 May 2026
Editors' Vox

The Impact of Advocacy: American Geophysical Union’s Days of Action

14 May 202613 May 2026
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