A tag-team of satellites and ground GNSS receivers track down the source of a radio signal disruption (scintillation) from afar—a “hotspot” of plasma some 60,000 kilometers away.
magnetic fields & magnetism
Posted inNews
Twin Spacecraft Ready to Head for a Martian Escapade
A pair of probes have taken a circuitous path to Mars but are now ready to leave their “loiter” orbit for a 10-month cruise to the Red Planet.
Posted inResearch Spotlights
Auroral Structure Could Be Caused by Bouncing Electrons
High-resolution optical observations of aurorae show fluctuations and structuring that could be explained by interactions between electrons and a plasma phenomenon called Alfvén waves.
Posted inResearch Spotlights
Measuring Deep-Ocean Oxygen with Microscopic Magnetic Fossils
A global comparison of microbial magnetic minerals unlocks a new tool for glimpsing the future of oxygen in Earth’s changing oceans.
Posted inResearch Spotlights
Of Cosmic Rains and Delayed Trains
Scientific detective work corrected the date of an early disruption in telegraph service, solidifying the links between solar weather and technological disturbances.
Posted inResearch Spotlights
How the 2024 Solar Superstorm Drained Earth’s Radiation Belt
Researchers dig into storm processes linked to dramatic electron loss from the outer Van Allen belt.
Posted inNews
Sharpest-Ever Image of the Sun Shows Small but Mighty Swirls
These tiny instabilities could play an outsized role in energizing the Sun’s corona.
Posted inEditors' Highlights
Unveiling Atmospheric Circulation on Mars with Magnetic Field Data
Not only can the magnetometer on NASA’s MAVEN satellite track magnetic fields on Mars; it can also track atmospheric circulation – using machine learning.
Posted inEditors' Highlights
The Magnetic Face of Plasma Irregularities on Mars
Plasma density irregularity is nothing new on Mars, but the accompanying magnetic field irregularity observed on NASA’s MAVEN satellite is.
Posted inResearch Spotlights
Getting to Know Uranus’s “Breathing” Bow Shock
The ice giant’s rotation causes daily expansion and contraction of the boundary where its magnetic field slows the solar wind.