Skip to main content
Sky high (Credit: Taro Nakai, distributed via imaggeo.egu.eu)

ST Solar-Terrestrial Sciences Division on Solar-Terrestrial Sciences

EGU logo

European Geosciences Union

Division on Solar-Terrestrial Sciences
st.egu.eu

Division on Solar-Terrestrial Sciences

President: Alexis Rouillard (Emailst@egu.eu)
Deputy President: Emilia Kilpua (Email)
ECS Representative: Andreas Wagner (Emailecs-st@egu.eu)

The Division on Solar-Terrestrial Sciences (ST) considers all aspects of solar and heliospheric physics, specifically the solar-terrestrial connection. It covers the physical processes occurring on the Sun, in the solar wind, as well as in Earth's magnetosphere and ionosphere. Solar activity (e.g. coronal mass ejections, solar flares, solar energetic particle events) and the response of the near-Earth space environment to these solar phenomena are studied on a wide-range of temporal and spatial scales. Data analysis and interpretation of space-borne and ground-based data, as well as theoretical studies and different modelling techniques are used to better our understanding of how our local star defines the neighbourhood that we live in.

Latest posts from the ST blog

Meet Samuel Badman, the 2026 Outstanding Early Career Scientist Awardee of the Solar-Terrestrial Division!

Congratulations on receiving the EGU 2026 ST Division Outstanding Early Career Scientist Award for your outstanding contributions to our understanding of solar wind physics through observations from the Parker Solar Probe and Solar Orbiter. What does this recognition mean to you personally, and how does it impact your work in this fascinating field? It is an incredible recognition which I am extremely grateful for, both to my nominators and the EGU-ST selection committee, and to all of my incredible colleagues, …


What do we need to understand the impact of energetic particle precipitation on the atmosphere? Your response can shape a future satellite mission!

Are you working on the magnetosphere, ionosphere, atmosphere, or space weather? We invite members of the scientific, operational, and applied user communities to contribute to a community survey that will help shape a New Earth Observation Mission Idea (NEOMI) Study of Energetic Particle Precipitation (SEEP). Earth’s atmosphere is not isolated from space. Invisible streams of energetic particles constantly connect the near-Earth space environment with our atmosphere, influencing atmospheric chemistry, ozone and NOx, atmospheric dynamics, and even aspects of space weather. …


Introducing Jana Šafránková and Zdeněk Němeček : 2026 Hannes Alfvén Medal for pioneering research in space plasma and dusty plasma Physics

Congratulations on receiving the 2026 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 each of you personally, and how does it impact your ongoing work in this fascinating field? We are both very honoured to be awarded the Hanes Alfven medal, and we would like to thank everyone who supported our nomination. …


Don’t Miss the EGU-ST Early-Career Scientist Events during EGU26!

As the EGU General Assembly (GA) 2026 approaches, Solar-Terrestrial (ST) Division Early-Career Scientist (ECS) team organized various events to give researchers a platform to network with their peers, and strengthen our community! What is ECS? Students (BSc, MSc), PhD candidates and researchers who obtained their highest academic degree in the last seven years are Early-Career Scientists as EGU guidelines indicates. We welcome all ECS to our informal events during the general assembly! You can also find these events on the …

Recent awardees

Jana Šafránková

Jana Šafránková

  • 2026
  • Hannes Alfvén Medal

The 2026 Hannes Alfvén Medal is awarded to Jana Šafránková for pioneering research in space plasma and dusty plasma physics, including establishing a unique laboratory facility for dust measurements and mentoring a new generation of scientific leaders.


Zdeněk Němeček

Zdeněk Němeček

  • 2026
  • Hannes Alfvén Medal

The 2026 Hannes Alfvén Medal is awarded to Zdeněk Němeček for pioneering research in space plasma and dusty plasma physics, including establishing a unique laboratory facility for dust measurements and mentoring a new generation of scientific leaders.


Samuel Badman

Samuel Badman

  • 2026
  • Division Outstanding Early Career Scientist Award

The 2026 Division Outstanding Early Career Scientist Award is awarded to Samuel Badman for outstanding research on the physics of the solar wind measured by the Parker Solar Probe and Solar Orbiter.


Richard Horne

Richard Horne

  • 2025
  • Julius Bartels Medal

The 2025 Julius Bartels Medal is awarded to Richard Horne for outstanding work on understanding the acceleration and transport processes of charged particles in the inner magnetosphere, the formation of the radiation belts and their space weather effects.


Karin Dissauer

Karin Dissauer

  • 2025
  • Division Outstanding Early Career Scientist Award

The 2025 Division Outstanding Early Career Scientist Award is awarded to Karin Dissauer for outstanding research in solar and extra-solar space weather research.


Carlos Castillo-Rivera

Carlos Castillo-Rivera

  • 2025
  • Outstanding Student and PhD candidate Presentation (OSPP) Award

The 2025 Outstanding Student and PhD candidate Presentation (OSPP) Award is awarded to Carlos Castillo-Rivera Evaluation of Interhemispheric Asymmetry using Total Electron Content at High Latitudes During Geomagnetic Storms


Qianyi Ma

Qianyi Ma

  • 2025
  • Outstanding Student and PhD candidate Presentation (OSPP) Award

The 2025 Outstanding Student and PhD candidate Presentation (OSPP) Award is awarded to Qianyi Ma Multi-spacecraft Observations of Interplanetary Suprathermal Electrons in a Shock-ICME Interaction Region

Current issue of the EGU newsletter

In our June issue, it's Pride Month and we dive into new discoveries for estuarine mixing and hydrological process modelling. A guide to accessing support for EU-based researchers is available on our YouTube channel and don't miss your chance to join our free EGU peer review training!

All this and much more, in this month's Loupe!