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magnetic fields & magnetism

A bright ribbon of light stretches across a star-filled view of the night sky.
Posted inResearch Spotlights

Probing Rare Hot Plasma Flows in the Upper Atmosphere

Sarah Stanley, Science Writer by Sarah Stanley 11 September 202311 September 2023

Postmidnight flows appear to be triggered by the same mechanism that drives more frequently observed evening flows.

A cylindrical spacecraft with two rectangular wings hovers above a gray planet with purple mist rising from it.
Posted inNews

Dramatic Flyby Confirms That Mercury’s Radioactive Aurora Touches the Ground

by Matt Hrodey 1 August 20231 August 2023

Data collected by the BepiColombo spacecraft traces the causes of the strange aurora, which course through the planet’s weak magnetosphere.

Illustration of the Earth's internal structure.
Posted inEditors' Vox

Digging Deep into Interactions Between the Core and Mantle

by Takashi Nakagawa, Taku Tsuchiya, Madhusoodhan Satish-Kumar and George Helffrich 24 July 20234 August 2023

A new book presents major advances in our understanding of core-mantle interaction and co-evolution, and showcases technological developments improving our insights into deep Earth processes.

Yellow partial sphere on a black background. Within the sphere are streaks of brighter yellow and a large black region.
Posted inNews

Magnetic Tangles Drive Solar Wind

by Matthew R. Francis 20 July 202320 July 2023

Energetic collisions between magnetic fields produce gusty solar wind.

A photo of a cratered, gray sphere. Two long arms of a spacecraft are visible in the foreground.
Posted inNews

Spacecraft to Swing Past Mercury for Third Time

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 14 June 202314 June 2023

With each flyby, the BepiColombo mission gets another boost of energy for its eventual orbital insertion around Mercury.

Photos of Martian meteorite NWA 7034.
Posted inEditors' Highlights

Hand Magnets Destroy the Magnetic Record of Meteorites

by Laurent G. J. Montési and Sonia Tikoo 30 May 202324 May 2023

Meteorite collectors often use strong magnets for classification, but this approach destroys crucial evidence of processes active in the early solar system.

An illustration of rainbow streaks bouncing off a dark sphere in the foreground. In the background is a yellow and red sphere radiating yellow streaks.
Posted inNews

Rocky Exoplanet May Have Magnetic Field

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 May 202310 May 2023

Magnetic interactions between stellar wind and the planet likely caused extrasolar space weather.

Photo looking down on Earth from a satellite, showing red and green streaks flickering in the atmosphere
Posted inNews

Eavesdropping on the Vibrations of Earth’s Magnetic Bubble

by Erin Martin-Jones 9 May 202316 May 2023

A NASA-funded crowdsourced science project has converted the unheard sounds resonating inside Earth’s magnetic shield into audible tracks, revealing an orchestra of whistles, wooshes, and chirps.

Photos from the study
Posted inEditors' Highlights

Collaboration Helps Overcome Challenges in Air Quality Monitoring

by Muki Haklay 19 April 20237 June 2023

Everything looks ideal for collaboration: interest from community members, a new method for monitoring air quality by scientists, and interest from policymakers. What happens next?

Figures from the paper.
Posted inEditors' Highlights

Meshless Methods Tell Us What Lurks Beneath the Surface

by Mohammad M. Al-Khaldi 10 April 20234 April 2023

Limitations with resolving complex underground targets with sufficiently fine resolution may be alleviated through the adoption of meshless electromagnetic methods.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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