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Science News by AGU

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Energetic particles: trapped

Illustration of the spacecraft of NASA’s Magnetospheric Multiscale mission in space in front of reconnecting magnetic field lines
Posted inResearch Spotlights

Spacecraft Reveal New Details of Magnetic Reconnection

by Morgan Rehnberg 15 February 2021

Energetic electrons are accelerated directly by magnetic reconnections and can act as tracers of large-scale magnetic field conditions.

Radio towers at the VLF Transmitter Cutler in Maine
Posted inResearch Spotlights

Terrestrial Radio Signals May Suppress High-Energy Electrons

by Morgan Rehnberg 12 October 2020

Naval radio signals may cause the formation of a barrier observed during geomagnetic storms that is seemingly impenetrable by relativistic electrons.

Posted inResearch Spotlights

The Curious Case of the Halloween Ghost Electrons

by Mark Zastrow 30 October 201530 October 2015

When solar storms pounded Earth during Halloween in 2003, scientists were eager to measure their effects. But new research shows one satellite was seeing "ghost" particles that probably weren't real.

Posted inResearch Spotlights

Spacecraft Records Rising-Tone Magnetosonic Waves

by C. Minnehan 11 September 201511 September 2015

A rising tone in wave frequencies suggests a complicated, nonlinear series of interactions between electromagnetic sound waves and protons near the magnetic equator.

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