• About
  • Special Reports
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Third Pod from the Sun
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Newsletter
  • Submit to Eos
  • AGU.org
  • AGU Publications
    • AGU Journals
    • Editors’ Highlights
    • Editors’ Vox
  • Career Center
  • AGU Blogs
  • Join AGU
  • Give to AGU
  • About
  • Special Reports
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Third Pod from the Sun
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Newsletter
  • Submit to Eos
Skip to content
Eos

Eos

Science News by AGU

Sign Up for Newsletter

solar activity

Satellite image of the Sun in X-rays and ultraviolet light
Posted inNews

Ghostly Particles from the Sun Confirm Nuclear Fusion

by Katherine Kornei 14 July 202012 October 2022

Using the Borexino particle detector—located deep underground in Italy—researchers spot elusive neutrinos from the Sun’s CNO cycle.

Artist’s illustration of the Lagrange mission under consideration by the European Space Agency showing two spacecraft situated between the Sun and Earth
Posted inResearch Spotlights

How to Improve Space Weather Forecasting

by Mark Zastrow 19 June 202022 February 2023

The field of space weather forecasting could take cues from its Earthly counterpart to increase the reliability of models as well as warning times ahead of inbound solar storms.

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.

A purple and red curtain aurora provides a backdrop to the silhouette of a forest.
Posted inNews

Ancient Assyrian Aurorae Help Astronomers Understand Solar Activity

by Mara Johnson-Groh 31 December 20197 September 2022

Records of aurorae in Mesopotamia from 2,600 years ago are helping astronomers understand and predict solar activity today.

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.

A coronal mass ejection (CME) on 27 February 2000
Posted inNews

Forecasting Solar Storms in Real Time

by Jenessa Duncombe 30 August 201931 May 2022

Predicting when solar storms will hit Earth remains a tricky business. To help, scientists can now submit their forecasts of coronal mass ejections online as they unfold in real time.

Black-and-white photo of round mines lined up on a ship’s deck
Posted inNews

Podcast: Space Weather and Global Policy

by S. M. Hanlon 19 August 201928 February 2023

In the latest episode of its Centennial series, AGU’s Third Pod from the Sun talks space weather and its influence on global policy with Delores Knipp.

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 image of the Sun overlaid with magnetic field lines
Posted inNews

Planetary Low Tide May Force Regular Sunspot Sync Ups

by Kimberly M. S. Cartier 21 June 201931 May 2022

A regular alignment of the planets—no, it’s not pseudoscience—makes a strong enough tug to regulate the Sun’s 11- and 22-year cycles.

An X8.2-class solar flare
Posted inResearch Spotlights

Solar Flares Increase Radiation Risk on Commercial Aircraft

by E. Underwood 18 April 201919 September 2022

A new study quantifies how space weather may affect polar transcontinental flight.

Posts navigation

Newer posts 1 2 3 4 5 … 8 Older posts

Features from AGU Journals

RESEARCH SPOTLIGHTS
Earth’s Future
“How to Build a Climate-Resilient Water Supply”
By Rachel Fritts

EDITORS' HIGHLIGHTS
AGU Advances
“How Do Atmospheric Rivers Respond to Extratropical Variability?”
By Sarah Kang

EDITORS' VOX
Reviews of Geophysics
“Rare and Revealing: Radiocarbon in Service of Paleoceanography”
By Luke C. Skinner and Edouard Bard

About Eos
ENGAGE
Awards
Contact

Advertise
Submit
Career Center
Sitemap

© 2023 American Geophysical Union. All rights reserved. Proudly powered by Newspack by Automattic