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plasmas

Posted inEditors' Highlights

Plasma Density Distribution in Mercury’s Magnetosphere

by Y. Wang 27 February 20197 March 2022

A new measurement of plasma density distribution in Mercury’s magnetosphere obtained from observations of field line resonance events provides necessary constraint for many planetary science issues.

An artist’s rendition of the NASA satellites that observe Earth’s magnetosphere
Posted inResearch Spotlights

New Plasma Wave Observations from Earth’s Magnetosphere

by Terri Cook 28 January 201913 October 2022

The first simultaneous observations of multiple electromagnetic wave types in Earth’s magnetosphere may inaugurate a new field of inquiry into cross-frequency wave interactions.

Posted inEditors' Highlights

Jupiter’s Stressed Out Magnetosphere Causes Aurora and Heating

by M. Liemohn 2 January 201918 January 2023

Force imbalance between Jupiter’s ionosphere and magnetosphere leads to wave generation to release this stress, but the waves also accelerate particles, causing aurora and heating.

A coronal loop of plasma travels along the Sun’s magnetic field lines
Posted inResearch Spotlights

Plasma Activity Around Sunspots May Foreshadow Solar Storms

by Aaron Sidder 5 December 201831 January 2023

A new study identifies possible precursors to space weather in the regions encircling sunspots.

Posted inEditors' Highlights

A New Angle on the Earth’s Radiation Belts

by M. Liemohn 21 May 201813 April 2022

A new empirical model of energetic electrons from Van Allen Probes data includes pitch angle analysis, revealing insights about radiation belt energization and loss processes.

Researchers examine a large plasma hole generated by a satellite launch to understand the impacts of anthropogenic space weather.
Posted inResearch Spotlights

Understanding the Effects of Anthropogenic Space Weather

by Terri Cook 1 May 201824 October 2022

A large plasma hole generated by the vertical launch of the Formosat-5 satellite created temporary navigating and positioning errors of up to 1 meter, according to a new study.

NASA's TWINS (Two Wide-angle Imaging Neutral-atom Spectrometers) Mission
Posted inEditors' Vox

The Big Picture in Geospace

by J. Goldstein 28 March 20184 May 2022

A NASA stereo-imaging mission called TWINS continues to push the boundaries of what we know about the region of space close to Earth.

Researchers capture the first complete image of Earth’s geocorona
Posted inResearch Spotlights

Tracing the Path of Gas Atoms from Earth to the Final Frontier

by S. Witman 22 January 201817 January 2023

Scientists capture the first complete image of Earth’s luminous geocorona and prove its ecliptic north–south symmetry.

Posted inEditors' Highlights

New Observations of Mysterious Radar Echoes

by Gang Lu 19 January 201812 October 2022

Exploring the relationship between solar extreme ultraviolet radiation flux and 150-km radar echoes.

Posted inEditors' Highlights

The “Magnetic-less” Magnetotail Boundary

by M. Liemohn 3 January 201810 March 2022

Most boundaries in space are governed by magnetic fields, but not far behind the Earth, where the field change across the magnetopause plays very little role in the pressure balance relationship.

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