Radio waves are providing a new way to probe the Sun and suggest that the magnetic field of its corona may be stronger than long thought.
magnetic fields & magnetism
Posted inEditors' Highlights
Molecular Ions Unexpectedly Frequent in Earth’s Magnetosphere
A Japanese satellite reveals rapid and surprisingly frequent transport of molecular ions from the ionosphere to the magnetosphere, under not only extreme but also moderate geomagnetic conditions.
Posted inGeoFIZZ
Was Ahab Truly “Lord of the Level Loadstone”?
Herman Melville’s bicentennial provides a good excuse to examine how well the Pequod’s monomaniacal mariner knew his geomagnetic magic.
Posted inResearch Spotlights
Sampling the Space Between the Stars
Data from the Cassini and Voyager spacecraft reveal new information about the Sun’s magnetic bubble.
Posted inNews
Moon Sheds Light on Early Solar Spin
Lunar samples reveal that the Sun spun relatively slowly in its first billion years and blasted the Earth and Moon with coronal mass ejections.
Posted inResearch Spotlights
Paleomagnetism Indicators May Be Flawed
A new study finds that magnetism in volcanic ash tuff forms through varied processes, calling into question previously reliable signatures used to study variations in Earth’s magnetic field.
Posted inResearch Spotlights
Data Mining Reveals the Dynamics of Auroral Substorms
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.
Posted inResearch Spotlights
No Underground Magma Ocean on Jupiter’s Fiery Moon?
A new study suggests alternative explanations for Io’s unusual magnetic field.
Posted inNews
New Model Shines Spotlight on Geomagnetic Jerks
Scientists get one step closer to being able to predict jerks—notoriously capricious changes to Earth’s geomagnetic field detectable by satellites.
Posted inResearch Spotlights
Jupiter’s Northern Lights on Display in Otherworldly Movie
The first movie of Jupiter’s infrared aurora gives scientists a new look at the Jovian magnetic field.