Observations reveal a connection between auroral particle precipitation and scintillation, indicating that the ionospheric E-region is a key source region for phase scintillation at auroral latitudes.
Plasmas
Posted inEditors' Highlights
Satellite Data Reveal Magnetospause K-H Waves Impact Auroras
Analysis of multiple satellite data has revealed a striking connection between K-H waves on the magnetopause, surface waves in the hot zone near the plasmapause, and auroral undulations.
Posted inEditors' Vox
New Results Concerning Solar Wind Entry into the Magnetosphere
A new book describes recent results defining the many pathways and foreshock, bow shock, magnetosheath, and magnetopause phenomena connecting the solar wind to the dayside magnetosphere.
Posted inResearch Spotlights
Terrestrial Radio Signals May Suppress High-Energy Electrons
Naval radio signals may cause the formation of a barrier observed during geomagnetic storms that is seemingly impenetrable by relativistic electrons.
Posted inEditors' Highlights
A Whistle Here, There, and Everywhere on the Giant Planet
NASA’s Juno spacecraft is “hearing whistles” all over the place on Jupiter, a type of natural plasma waves called whistlers that are sometimes associated with atmospheric lightning.
Posted inEditors' Highlights
All Hands on Deck to Catch Ion Cyclotron Waves
An international armada of orbiting satellites and ground VLF network join forces to form a “magnetosphere-ionosphere observatory” to size up electromagnetic ion cyclotron waves in the magnetosphere.
Posted inResearch Spotlights
Explaining the Missing Energy in Mars’s Electrons
Electrons energized and trapped at Mars were thought to lose energy inside the planet’s magnetosheath, but new research suggests a different explanation of spacecraft data.
Posted inEditors' Highlights
Human-made Emissions Modify Electron Space Environment
Very Low Frequency transmitters used for communications with submarines modify the dynamics of energetic electrons in the inner radiation belt and the slot region.
Posted inEditors' Highlights
Holistic Views of the Nighttime Ionosphere
The nightside ionosphere, at latitudes away from the auroral zone, should have very little charged particle density, but it doesn’t. A new comprehensive study of satellite data explains why.
Posted inEditors' Highlights
Red and Green Aurora Stop and Go for Different Reasons
Green-line arc is found to be embedded within large-scale upward field aligned currents while red-line-only arc is found to be associated with low-energy precipitation bursts.