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the Sun

Illustration showing the Heliosphere and its surroundings
Posted inEditors' Highlights

The Cosmic Timeline of Heliophysics

by W. K. Peterson 23 December 202029 September 2021

Thom Moore began his career after the start of the space age. This is the story of how he converted his interests in evolution, philosophy, and psychology and writing into the study of heliophysics.

An active sun in June 2013
Posted inResearch Spotlights

How Accurate Are Our Measurements of the Sun’s Energy?

by Elizabeth Thompson 13 April 20201 November 2021

As instruments collecting solar data degrade, researchers must correct for errors. A new study compares several methods to correct solar spectral irradiance measurements.

Graph showing an example of very-low frequency signal phase response to solar X-ray emissions over a 24-hour period
Posted inEditors' Highlights

Using Earth’s Atmosphere as a Solar Flare Monitor

by Michael A. Hapgood 28 January 202027 January 2022

Measurements of very-low frequency radio signal phase and amplitude can detect upper atmosphere changes caused by solar flares, enabling us to monitor flare occurrence and intensity.

Sunspots seen in February 2013
Posted inEditors' Vox

Hearing the Sun Tock

by C. T. Russell, L. K. Jian and J. G. Luhmann 25 October 201931 May 2022

The appearance of sunspots—their number, duration, and location—suggests that the dynamics of the Sun’s outer layer is synchronized with an internal clock.

Workers in hazmat suits climb into the core of a huge scientific machine
Posted inNews

Million-Degree Experiment Complicates Solar Science

by J. Barbuzano 15 October 201926 January 2022

Experiments at Sun-like temperatures show that certain elements absorb more light than solar models predict, creating uncertainties for stellar science.

Screenshot of the control panel of the CAT-HI tool
Posted inEditors' Highlights

Looking Away from the Sun: Improved Tracking of Solar Storms

by Michael A. Hapgood 17 September 201913 October 2021

A new tool for tracking coronal mass ejections away from the Sun opens a path toward more accurate warnings for operators who have to cope with adverse space weather.

Animated satellite image of a solar flare
Posted inNews

Solar Spike Suggests a More Active Sun

by Nola Taylor Tillman 12 September 201913 October 2021

Radio waves are providing a new way to probe the Sun and suggest that the magnetic field of its corona may be stronger than long thought.

Image of the Sun with bright solar flares
Posted inNews

Researchers Reproduce Processes Behind Astrophysical Shocks

by R. Crowell 26 August 201913 October 2021

Studying shock precursors in a laboratory setting enables researchers to take a different look at the precursors’ properties and the physics behind them.

Image of a solar prominence
Posted inNews

Moon Sheds Light on Early Solar Spin

by Nola Taylor Tillman 13 August 20197 March 2022

Lunar samples reveal that the Sun spun relatively slowly in its first billion years and blasted the Earth and Moon with coronal mass ejections.

An X1.6 class solar flare imaged by NASA’s Solar Dynamics Observatory in 2014.
Posted inAGU News

Here Comes the Sun

by Heather Goss 1 August 201914 January 2022

This August, we look at the relationship we have to our closest star for AGU’s Centennial.

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From AGU Journals

MOST SHARED
Reviews of Geophysics
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HOT ARTICLE
Geophysical Research Letters
“Relating Slip Behavior to Off-Fault Deformation Using Physical Models”
By Emily O. Ross et al.


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