Solar-Terrestrial Sciences

Decoding the Sun’s Past: Dr. Theodosios Chatzistergos, 2024 e-SWAN Alexander Chizhevsky Medalist, on his Scientific Journey

Shreedevi P R April 1, 2025

Dr. Theodosios Chatzistergos receiving his award during the ceremony at the European Space Weather Week in Coimbra, Portugal. Photo courtesy of Dr. Setareh Jamali Jaghdani.

1. Congratulations on receiving the e-SWAN Alexander Chizhevsky Medal for outstanding contributions to space weather and space climate. How does this recognition reflect your work and impact in the field? Thank you! I am deeply honored to receive this award, which recognizes not just my work but the collective efforts of many collaborators over the years. My research has focused on reconstructing ...[Read More]

AGATA: Advancing Polar Science through Multi-Instrument Integration and Collaboration

Authored by Lucilla Alfonsi, Wojciech J. Miloch, and Shreedevi P. R., and edited by Liliana Macotella March 11, 2025

Scientific research has long recognized that solar-terrestrial interactions play a crucial role in shaping the polar atmosphere, impacting both climate dynamics and atmospheric coupling across different layers. Understanding these interactions is key to unraveling their far-reaching effects on Earth’s climate, space weather, and global atmospheric processes. The recognition of these critical proce ...[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]

New auroral dunes discovered through citizen science

Maxime Grandin and Minna Palmroth April 14, 2020

Two simultaneous pictures of the dunes on 7 October 2018 from (a) Laitila (by Pirjo Koski) and (b) Ruovesi (by Rami Valonen), where six fingertips were identified to determine their altitude. © Palmroth et al. (2020) / CC BY 4.0

The region of the Earth’s atmosphere lying at altitudes between about 80 and 120 km, corresponding to the mesosphere–lower thermosphere–ionosphere (MLTI), is often referred to as the “ignorosphere”, because its observation is so challenging that only a handful of measurements of its composition, temperature and other physical parameters have been obtained over the last few decades. It is, however, ...[Read More]