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solar activity

The 10 September 2017 X class solar flare in ultraviolet light.
Posted inNews

Solar Flare Caused Increased Oxygen Loss from Mars’s Atmosphere

by Kimberly M. S. Cartier 4 June 201820 December 2022

Measurements by a Mars-orbiting spacecraft indicated heating and chemistry changes in the planet’s atmosphere following an extreme solar eruption last year.

Posted inResearch Spotlights

Mysterious Aurora Borealis Feature Explained for the First Time

by E. Underwood 30 May 201823 January 2023

High-speed particles cause indentations in the magnetopause to form “throat auroras.”

Posted inEditors' Highlights

Anatomy of a Flux Rope Hurtling Through the Solar System

by M. Liemohn 15 May 201827 April 2022

Pancaking and erosion can explain a lot of the structural change in magnetic flux ropes as they fly evolve during their supersonic flight through the inner solar system.

Researchers use satellite data to calculate how fast the Nile Delta is sinking
Posted inResearch Spotlights

Capturing Structural Changes of Solar Blasts en Route to Earth

by Sarah Stanley 25 April 20184 May 2022

Comparison of magnetic field structures for 20 coronal mass ejections at eruption versus Earth arrival highlights the importance of tracking structural evolution to refine space weather predictions.

Posted inEditors' Highlights

Fast CMEs Continue to Decelerate in the Outer Heliosphere

by Y. Wang 12 February 201831 May 2022

Most fast coronal mass ejections will be decelerated into ambient solar wind quickly in the inner heliosphere, but some of them continue the deceleration with an even larger amplitude beyond 1 AU.

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.

Researchers compile a 45-year map record of sunspots
Posted inResearch Spotlights

Preserving a 45-Year Record of Sunspots

by E. Underwood 17 January 201813 October 2022

Maps reveal how the Sun’s magnetic field evolves through solar cycles.

A new model of solar winds could improve predictions of space storms
Posted inResearch Spotlights

A Better Way to Predict Space Storms

by E. Underwood 13 December 201713 April 2022

A new model of solar winds could reduce false alarms.

Posted inEditors' Highlights

A Survey of Solar Radio Burst Statistics

by D. J. Knipp 7 December 201727 January 2022

National solar radio archive records have substantial missing data potentially affecting the ability to benchmark extreme solar events.

Posted inEditors' Highlights

Where Did the Water Go on Mars?

by A. Yau 28 November 20174 May 2022

Primordial solar storm conditions are believed to have significantly enhanced the loss of water and other atmospheric volatiles in Mars’ history.

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“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

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“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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