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solar wind

Swirling cloud bands in Jupiter’s northern hemisphere
Posted inNews

Could Jupiter’s Heat Waves Help Solve a Planetary Energy Crisis?

by Tim Hornyak 9 November 20229 November 2022

Infrared observations reveal that Jupiter’s upper atmosphere is much warmer than models predict. The discovery may be a clue to finding missing heat sources in other giant planets.

Computer-generated visualization of solar plasma interacting with Earth’s magnetic field.
Posted inFeatures

Space Raindrops Splashing on Earth’s Magnetic Umbrella

by Laura Vuorinen, Adrian LaMoury, Emmanuel Masongsong and Heli Hietala 7 October 20227 October 2022

Though not as damaging as extreme space weather events, showers of plasma jets hit Earth’s magnetic shield every day—yet we’re only beginning to understand their effects.

We are in the middle of solar cycle 25, which means that the Sun has been slowly ramping up its sunspot and flare activity for the past few years.
Posted inFeatures

11 Discoveries Awaiting Us at Solar Max

by Kimberly M. S. Cartier 25 August 202230 September 2022

Each solar cycle might seem like the same old story, but one thing has changed significantly since the previous solar maximum–our technology.

The solar corona is visible during the total solar eclipse on 21 August 2017.
Posted inNews

A “Dam” in the Corona May Make the Solar Wind Gain Its Unusual Speeds

by Alakananda Dasgupta 8 June 20228 June 2022

A new study supports the idea of a “helicity barrier” influencing the fluctuating stream of interplanetary plasma.

A computer simulation of solar wind entry layer and flux transfer events (green lines) in Mercury’s dayside magnetosphere
Posted inResearch Spotlights

Solar Wind a Major Driver of Atmospheric Sodium at Mercury

by Morgan Rehnberg 27 May 202227 July 2022

MESSENGER observations show a 50% rise in atmospheric sodium-group ions during periods of high solar wind activity.

Chart showing polar cap index values for four days around the St Patrick’s Day storm of 2015.
Posted inEditors' Highlights

Watching the Substorms Grow

by Michael A. Hapgood 24 May 20222 August 2022

Updated procedures enable consistent use of a wide network of polar magnetometers to monitor energy flow into the tail of Earth’s magnetosphere during the growth phase of substorms.

Artist’s impression of China’s Tianwen-1 spacecraft en route to Mars.
Posted inEditors' Highlights

First Solar Wind Plasma Observations from the Tianwen-1 Mission

by Limei Yan 6 May 20227 September 2022

Solar wind plasma data captured by the Tianwen-1 probe while in transit to Mars represent an important step toward a new era of cooperative Martian space exploration.

Artist rendering of magnetic reconnection taking place in the Earth's magnetosphere
Posted inEditors' Vox

Hidden Atmospheric Particles Sculpt Near-Earth Space Environment

by S. Toledo, M. André, N. Aunai, C.R. Chappell, J. Dargent, S.A. Fuselier, A. Glocer, D.B. Graham, S. Haaland, M. Hesse, L.M. Kistler, B. Lavraud, W. Li, T. E. Moore, P. Tenfjord and S.K. Vines 22 September 202110 October 2021

Charged particles escape our atmosphere following Earth’s magnetic field and constitute a main source of matter that modulates Sun-Earth interactions.

Illustration showing the dayside magnetosphere and its surroundings
Posted inEditors' Vox

New Results Concerning Solar Wind Entry into the Magnetosphere

by D. G. Sibeck, Q. Zong, P. Escoubet, G. Le and H. Zhang 28 October 202010 March 2022

A new book describes recent results defining the many pathways and foreshock, bow shock, magnetosheath, and magnetopause phenomena connecting the solar wind to the dayside magnetosphere.

Posted inEditors' Highlights

Solar Properties Rival for Control of Mars’s Bow Shock

by M. Liemohn 9 July 20194 May 2022

While most planetary bow shocks are controlled by the solar wind, at Mars the solar EUV flux is equally important.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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