Updating a model developed during the Voyager flybys will enable better mission planning and a deeper understanding of Juno data.
Ring current
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 inResearch Spotlights
How Space Storms Affect the Satellite Superhighway
A powerful numerical model reveals how space weather disturbs magnetic field at geosynchronous orbit.
Posted inEditors' Vox
The Big Picture in Geospace
A NASA stereo-imaging mission called TWINS continues to push the boundaries of what we know about the region of space close to Earth.
Posted inScience Updates
Radiation Belt Processes in a Declining Solar Cycle
The Van Allen Probes began an extended mission in November to advance understanding of Earth's radiation belts.
Posted inResearch Spotlights
Spacecraft Records Rising-Tone Magnetosonic Waves
A rising tone in wave frequencies suggests a complicated, nonlinear series of interactions between electromagnetic sound waves and protons near the magnetic equator.