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plasmas

Four seemingly identical, octagonal, disklike structures, each with several various thin antennas extending outward at various angles, appear to be floating in a closely spaced cluster in space. In the background, on the right side of the image, is the round shape of the planet Earth, encircled by translucent, overlapping blue and purple lines.
Posted inResearch Spotlights

New Insights into an Enigmatic Form of Magnetic Reconnection

Sarah Stanley, Science Writer by Sarah Stanley 11 April 202511 April 2025

A new study deepens understanding of magnetic field behavior recently discovered by NASA in Earth’s magnetosphere.

Graph from the paper.
Posted inEditors' Highlights

Prediction of Equatorial Plasma Bubbles for Navigation and Communication

by Alberto Montanari 7 March 20257 March 2025

Scientists demonstrate a new technique to predict the formation of equatorial plasma bubbles, a crucial space weather phenomenon affecting satellite-based communication and navigation systems.

Illustration of a spacecraft in space.
Posted inEditors' Highlights

Heating Mechanism at Earth’s Bow Shock Depends on Shock Speed

by Marit Oieroset 24 February 202524 February 2025

A new technique shows that the dominance of gradual versus chaotic electron heating processes at Earth’s bow shock is controlled by how fast the shock is moving.

Diagram from the study.
Posted inEditors' Highlights

Wave-Modulated Electron Loss Affects GPS Location Determination

by Mary Hudson 7 January 202520 December 2024

Earth’s magnetosphere controls ionospheric total electron content modulation via plasma wave-induced electron loss impacting GPS spatial location determination.

Diagrams from the study.
Posted inEditors' Highlights

New Empirical Model of the Flux in the Magnetosheath

by Viviane Pierrard 6 January 202520 December 2024

A new study presents a model that reconstructs the plasma flux in the Earth’s magnetosheath.

Eighteen photos in a grid. Each features a background of green light reminiscent of the northern lights, with clusters of red dots in the middle.
Posted inResearch Spotlights

Radar Reveals Electrical Activity in the Ionosphere

by Saima May Sidik 18 December 202416 July 2025

A new method could improve understanding of communication disruptions.

A black-and-white artist’s depiction of Earth’s Van Allen radiation belts—two half-oval shapes extending out to the left and right of Earth (to show a cross section of the belts).
Posted inResearch Spotlights

Audible Storm Waves Could Turbocharge Earth’s Radiation Belts

Sarah Stanley, Science Writer by Sarah Stanley 16 October 202416 October 2024

Electromagnetic chorus waves could generate more extreme radiation levels than previously thought, posing severe hazards for Earth-orbiting spacecraft.

从太空看到的南极光(南半球上空的极光)
Posted inResearch Spotlights

太空飓风在南半球盘旋,夏季尤甚

by Rebecca Dzombak 28 August 202428 August 2024

先前对最近发现的空间天气事件的研究主要集中在北半球。新的研究表明,每年有数十次飓风袭击南半球。

Artist’s depiction of a huge rope of fire stretching out from the Sun, with Earth pictured to scale, very small in the corner
Posted inResearch Spotlights

Coronal Mass Ejection Gives Earth’s Magnetosphere Rare “Wings”

by Nathaniel Scharping 2 August 20242 August 2024

A massive disturbance in the solar wind caused Earth’s magnetosphere to fly without its usual tail.

Aurora australis (aurora over the Southern Hemisphere) seen from space
Posted inResearch Spotlights

Space Hurricanes Swirl in the Southern Hemisphere, Mostly in Summer

by Rebecca Dzombak 31 July 202428 August 2024

Previous studies of the recently discovered space weather feature focused on the Northern Hemisphere. Dozens hit the Southern Hemisphere each year, new research shows.

Posts pagination

Newer posts 1 2 3 4 … 9 Older posts
Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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