Solar-Terrestrial Sciences

A talk with scientists across Europe: building the future of European heliophysics together

Guram November 23, 2025

“Heliophysics studies the Sun, its sphere of influence, and how it affects the bodies in the solar system.” – this holistic approach to understanding our space environment is at the heart of the European Heliophysics Community (EHC), an open and inclusive network of researchers across Europe (https://www.heliophysics.eu/). The EHC promotes collaborative, curiosity-driven science that explore ...[Read More]

Meet Richard Horne, 2025 Julius Bartels medalist, honoured for his fundamental contributions to understanding the formation of the radiation belts and their effects on space weather

Guram August 14, 2025

Richard Horne enjoys writing as it helps to clarify ideas — research is a creative activity. (Credit: Natural Environment Research Council / British Antarctic Survey)

Congratulations on receiving the 2025 Julius Bartels Medal for your groundbreaking contributions to wave-particle interactions, their role in accelerating charged particles, and advancing the understanding of the formation of the radiation belts and their space weather effects. What does this recognition mean to you personally, and how does it impact your work in this fascinating field? I am truly ...[Read More]

Chasing Auroras 41 Millennia Ago with Agnit Mukhopadhyay and Sanja Panovska

Guram July 18, 2025

Auroras occur when energetic particles from the Sun are transported along the Earth's magnetic field and collide with atmospheric gases, producing characteristic green and red light. Typically restricted to high latitudes, auroras extended toward the equator during the Laschamp event (~41,000 years ago) when Earth's magnetic field was unusually weak and multipolar. This image presents an artistic rendering of those ancient auroras based on a recently developed global magnetic field model. (Credit: GFZ Helmholtz Centre for Geosciences, Maximilian Schanner).

Approximately 41,000 years ago, during the Laschamps geomagnetic excursion, Earth’s magnetic field experienced a significant disturbance. The strength of the magnetic field decreased to only 10% of what it is today, the magnetic poles shifted considerably from the geographic poles, and the magnetosphere—the protective layer surrounding our planet—became smaller and distorted in previously unvisual ...[Read More]

Meet Sandra Catherine Chapman, 2024 Hannes Alfvén Medalist, honoured for her groundbreaking contributions and vision in space plasma physics

Guram May 12, 2025

Sandra Catherine Chapman

Congratulations on receiving the 2024 Hannes Alfvén Medal for your pioneering work and outstanding leadership in advancing our understanding of space plasma physics, including its fundamental processes and impacts throughout the solar system and beyond. What does this recognition mean to you personally, and how does it impact your work in this fascinating field? I am deeply honoured to be awarded ...[Read More]

Meet Erika Palmerio, the 2024 Outstanding Early Career Scientist Awardee of the Solar-Terrestrial Division!

Guram March 9, 2025

Erika Palmerio presents her research on solar eruptions and their impact across the heliosphere at European Space Weather Week in Coimbra, Portugal.

Congratulations on receiving the EGU 2024 ST Division Outstanding Early Career Scientist Award for your exceptional research in analyzing complex solar transients and their effects on space weather. What does this recognition mean to you personally, and how does it impact your work in this fascinating field? Thank you so much! Receiving an award from EGU is of particular significance to me, since ...[Read More]