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the Sun

Posted inNews

James Wynne Dungey (1923–2015)

by D. Southwood 2 February 201610 November 2022

Dungey, whose research laid the foundation for how the Sun's magnetic field connects to Earth's magnetic field, died on 9 May 2015. He was 92.

Posted inResearch Spotlights

Satellites Test Theory of Magnetic Reconnection

by Mark Zastrow 2 February 201618 July 2023

A quartet of satellites flying through Earth's magnetic field measures its interaction with the Sun's and puts a theory about their reconnection to the test.

Posted inResearch Spotlights

Sun's Magnetic Field Impacts Earth's Thunderstorms

Sarah Stanley, Science Writer by Sarah Stanley 29 January 201620 December 2021

Lightning strikes are more frequent when Earth encounters a polarity switch in the solar magnetic field.

Posted inNews

Physics Nobel Winners Also Solved Solar Mystery

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 7 October 201523 January 2023

Although they won the prize for showing neutrinos have mass, the two Nobel-winning physicists also solved a long-standing mystery of solar neutrinos.

Posted inResearch Spotlights

New Ionosphere Model Incorporates Solar Angles

by Mark Zastrow 4 June 201516 November 2021

The decades-old theory of the layers of the Earth's ionosphere, which dates to 1931, has just received an update that takes into account the angle of the Sun.

Posted inResearch Spotlights

What Causes Sunspot Pairs?

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 5 May 201518 January 2023

Analysis of magnetic fields on the Sun's surface offers a new clue on why sunspots appear.

Posted inResearch Spotlights

Can Scientists Boost Solar Modeling Despite a Lack of Data?

by C. Schultz 5 February 201515 March 2022

Researchers show that a data processing technique could salvage useful information from raw solar observations, opening the door to improved understanding of the solar dynamo.

Posted inScience Updates

The Impact of Coronagraphs

by O. C. St. Cyr, B. Fleck, J. M. Davila and Faith Ishii 14 October 201427 January 2022

Observations of the Sun’s extended atmosphere with coronagraphs have become indispensable to both basic and applied research.

Posted inResearch Spotlights

Low Heliosphere Pressure Drives Wide CMEs in Weak Solar Cycles

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 29 July 201410 September 2025

Why are coronal mass ejections from the current solar cycle wider than others? Researchers investigate.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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In Appreciation of AGU’s Outstanding Reviewers of 2025

14 September 202610 September 2026
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