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space weather (hazard)

An illustration of rainbow streaks bouncing off a dark sphere in the foreground. In the background is a yellow and red sphere radiating yellow streaks.
Posted inNews

Rocky Exoplanet May Have Magnetic Field

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 May 202310 May 2023

Magnetic interactions between stellar wind and the planet likely caused extrasolar space weather.

An orange “doughnut,” the plasmasphere, encircles Earth, with curved lines representing Earth’s magnetic field arcing through it and the Moon in the background.
Posted inNews

Tides Ripple Across Earth’s Plasma “Donut”

Damond Benningfield, Science Writer by Damond Benningfield 4 April 20234 April 2023

Interactions between lunar gravity and the terrestrial magnetic field may cause a 90° offset from the Moon’s position in its orbit.

Image of a Coronal Mass Ejection traveling towards Earth.
Posted inEditors' Vox

Machine Learning Helps to Solve Problems in Heliophysics

by Enrico Camporeale, Veronique Delouille, Thomas Berger and Sophie Murray 3 November 20222 November 2022

A new special collection invites papers pertaining to the use of machine learning techniques in all sub-fields of heliophysics.

View from space showing lights illuminating the U.S. Gulf Coast
Posted inOpinions

Converging Toward Solutions to Grand Challenges

by Ryan McGranaghan, Adam Kellerman and Mark Olson 25 October 20221 June 2023

A hypothetical, space weather–induced power grid catastrophe served as a practice case for building unity and collaborative skills among disparate communities to address a major global hazard.

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 202224 April 2023

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.

Posted inEditors' Highlights

Origin of Dawnside Subauroral Plasma Flows in Geomagnetic Storms

by Susan Trumbore 12 September 202218 October 2022

Geomagnetic storms induce fast plasma flows next to the aurora and affect space weather. Lin et al. explain the origin of a special “dawnside” plasma stream that occurs only during extreme storm events.

Diagram showing the interior of the Sun
Posted inFeatures

Shake, Rattle, and Probe

Damond Benningfield, Science Writer by Damond Benningfield 25 August 202217 January 2023

Helioseismology allows scientists to study the interior of the Sun, solve some basic physics mysteries, and forecast space weather.

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

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org 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.

Three auroral images taken by a citizen scientist in Dunedin, New Zealand.
Posted inEditors' Highlights

Uncovering the Mysterious STEVE Aurora

by Gang Lu 7 June 202214 September 2022

Scientists present the first direct observations on the rapid evolution of a bright red auroral arc into a thin white-mauve arc known as STEVE.

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.

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EDITORS' VOX
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“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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