Scientists investigate how dipolarization fronts in Earth's protective magnetosphere interact with the environment around them.
magnetic fields & magnetism
Posted inEditors' Vox
Saturn’s Magnetosphere: A Dozen Years of Discovery
Twelve years of studying Saturn's magnetosphere has produced many compelling breakthroughs. Even more exciting, however, is what's left to learn.
Posted inNews
Juno Spacecraft Nails Its Orbit Around Jupiter
The mission will spend 20 months collecting data on the planet's core, its magnetic field, and the composition of its atmosphere.
Posted inResearch Spotlights
Solar Wind Disconnects Venus’s Magnetotail
Polarity reversals in the solar wind magnetic field disconnect the magnetic field trailing behind Venus, allowing ions from the atmosphere to escape.
Posted inScience Updates
Making a Better Magnetic Map
A new version of the World Digital Magnetic Anomaly Map, released last summer, gives greater insight into the structure and history of Earth's crust and upper mantle.
Posted inResearch Spotlights
Patches of Low Electron Density Help to Heat the Ionosphere
Simulations show how changes in electron density can trap electromagnetic waves and heat electrons in the ionosphere.
Posted inEditors' Vox
Chasing Down the Slow Solar Wind
The Sun's plasma blasts Earth’s magnetosphere at more than a million miles per hour. The fastest pours from holes in the corona, but until recently the source of the "slow" solar wind was a mystery.
Posted inResearch Spotlights
Evidence of an Extinct Ocean Basin Detected Beneath Greenland
An analysis of a seismic and gravity anomaly discovered in the middle mantle sheds new light on ancient oceans, the mantle's evolution, and ancient magmatism in the Arctic.
Posted inEditors' Vox
Polarity Reversals in the Earth’s Magnetic Field
Studies of geomagnetic polarity reversals have generated some of the biggest and most interesting debates in the paleomagnetic and wider solid Earth geophysics communities over the last 25 years.
Posted inResearch Spotlights
Electrons Thrown Off Course in Near-Earth Magnetic Reconnection
NASA Magnetospheric Multiscale (MMS) mission detects energy differences in electrons scattered by magnetic reconnection.