Maps reveal how the Sun’s magnetic field evolves through solar cycles.
Space Weather
Posted inEditors' Highlights
Comparing the Accuracy of Geomagnetic Field Models
Improved accuracy and optimization of models could benefit many applications.
Posted inResearch Spotlights
A Better Way to Predict Space Storms
A new model of solar winds could reduce false alarms.
Posted inEditors' Highlights
Imaging the Sun’s Atmosphere
The technique of heliospheric imaging could be valuable for future space weather operations.
Posted inResearch Spotlights
Federal Space Weather Research Could Improve Hazard Preparation
Researchers outline the history of the U.S. government’s involvement in space weather research, from before World War II, through the Space Race, and beyond.
Posted inResearch Spotlights
Testing Models of Near-Space Electrical Currents
Modeling Earth’s near-space environment and its electrical currents is challenging. A new study compares how four different models stack up against observations.
Posted inFeatures
The Geomagnetic Blitz of September 1941
Seventy-five years ago next week, a massive geomagnetic storm disrupted electrical power, interrupted radio broadcasts, and illuminated the night sky in a World War II battle theater.
Posted inResearch Spotlights
Satellite Shows Earth's Magnetic Field Bent During a Solar Storm
When solar storms strike, they weaken Earth's defenses against harmful radiation. New satellite measurements reveal just how much.
Posted inResearch Spotlights
Sun's Magnetic Fields Best at Forecasting Solar Cycle Peaks
Models based on the Sun's polar magnetic fields performed best in simulating the solar cycle and predicting solar behavior.
Posted inResearch Spotlights
Solar Storms Are More Predictable Than Hurricanes
An encouraging new study finds that solar storms don't propagate chaotically like hurricanes—their arrivals are more predictable, which should make it easier for our planet to prepare for them.