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International Space Science Institute (ISSI)Hallerstrasse 6
3012 Bern
Switzerland

Phone +41 31 684 48 96
Email issi@issibern.ch

Solar Physics

4. June 2026

Origins and Structure of the Heliosphere: Novel Discoveries and Insights from Parker Solar Probe and Solar Orbiter

Webinar with Marco Velli (Earth, Planetary and Space Sciences, UCLA, USA)

Thursday, 25th June 2026 (17h CEST | 11h EDT)

Please click on THIS LINK FOR THE ZOOM SESSION

Meeting ID: 852 6990 9362 
Password: 459004

The launch of Parker Solar Probe (Parker) in 2018, accompanied shortly after by the launch of Solar Orbiter (Orbiter), has opened a new frontier in the exploration of the Heliosphere.  One of the first observations by Parker Solar Probe was that much of the solar wind, independently of speed, is dominated by Alfvénic fluctuations, suggesting that these fluctuations play a vital role in Heliospheric dynamics. Parker also observed that the Heliospheric current sheet is extremely dynamic in its formation region, with reconnection being a persistently observed process.

27. February 2025

Towards a deeper understanding of multiphase plasma across astrophysical scales

An international collaboration hosted at ISSI examined the inner workings of multiphase plasma to answer fundamental questions in physics from the Sun to the medium inside galaxy clusters. Their observations of the solar corona, the outermost part of the Sun’s atmosphere, expand our knowledge of the physics of multiphase plasma, and might help us understand the role this phenomenon plays across the universe.

13. January 2025

Call for Proposals for International Teams in the Space & Earth Sciences

Eligible research projects must involve the interdisciplinary analysis and evaluation of space mission data. They may also draw on complementary ground-based data and/or theoretical modelling where this adds scientific value.

This call is open to all scientists, regardless of nationality or institutional affiliation, who are actively involved in any of the following research fields:

1. Space Sciences: Astrobiology, Astrophysics and Cosmology, Fundamental Physics in Space, Magnetospheric and Space Plasma Physics, Planetary Sciences, Solar and Heliospheric Physics, and Solar-Terrestrial Sciences.

2. Earth Sciences using space data. This includes understanding and modelling Earth system processes, as well as climate change projections.

21. June 2024

Eruptive Events on the Sun – from Small to Large Scale

Online Seminar with Louise Harra
(PMOD/WRC, Davos & ETH Zurich, Switzerland)

The instruments measure the solar wind as it flows past the spacecraft as well as the sources of the wind across the electromagnetic spectrum. A scientific focus has been on understanding the small-scale jets and brightenings that can feed into the solar wind, as well as the larger scale eruptions now that the solar activity cycle is reaching its peak.

A Spiral Amongst Thousands
Credits ESA/Webb, NASA & CSA, A. Martel