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

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

International Space Science Institute

Science is
our Focus

ISSI is a scientifically independent and neutral Space and Earth Science institute that advances science by facilitating open multi-disciplinary discourse in a stimulating environment, reaching out towards new scientific horizons.

ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi
Roger-Maurice Bonnet (1937–2026)
Roger-Maurice Bonnet (1937–2026), picture taken at the ISSI Annual Dinner 2011.

Prof. Dr. Roger-Maurice Bonnet (1937–2026)

Published: 20 January 2026

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

The International Space Science Institute (ISSI) in Bern (Switzerland) and ISSI-BJ in Beijing (China) invite proposals for establishing International Teams to conduct collaborative research in the Space and Earth Sciences at their respective meeting facilities. Deadline for Submission: March 13, 2026.

bySabina Raducan

Published: 14 January 2026

Current ISSI Events

The programme of ISSI covers a wide spectrum of disciplines including the physics of the solar system and planetary sciences to astrophysics and cosmology, and from Earth sciences to astrobiology.

When checking the ISSI Calendar for potential meeting dates, please note that ISSI is usually at full capacity with either a) 3 teams or working groups, or b) 1 forum, plus 1 team or working group, or c) 1 workshop.

Mon – Fri Jan 26 – Jan 30
International Team of K. Golubenko & H. Wittmann 25-638

Beryllium-10 for Earth and Solar Tracing (BEST)

Mon – Fri Feb 2 – Feb 6
International Team of L. Kepko & S. Gasparini 25-644

Beyond what our eyes can see : A new era mesoscale M-I coupling

Mon – Fri Feb 2 – Feb 6
International Team of M. Xiao and R. Naidu 25-659

Little Red Dots, Big Open Questions : Unraveling the Mystery of the James Webb Space Telescope's Most Debated Discovery

Mon – Fri Feb 2 – Feb 6
International Team of R. Milligan and L. Harra 24-618

The Impact of Solar Flare Irradiance on the Earth's Ionosphere

Reaching out towards new scientific horizons

Our Fields of Research

Heliophysics

Astrophysics

Planetary
Science

Earth
Science

Spotlight

💡

Latest news from ISSI and research updates from our communities.

ISSI 2026 Johannes Geiss Fellow Claire Nichols
ISSI 2026 Johannes Geiss Fellow Claire Nichols (Image by Claire Nichols)

A word with 2026 Johannes Geiss Fellow Claire Nichols

2026 Johannes Geiss Fellow

byClaire NicholsFabio Crameri

Published: 29 January 2026

ISSI is located in Bern, Switzerland

Visit us
in Bern

Bern can be reached easily from the airports: Zurich (ZHR), Geneva (GVA), and Basel Euroairport (BSL). Bern is also connected to many European cities by fast intercity trains. Timetable information of trains within and around Switzerland can be found at www.rail.ch.

🚀
FIND US HERE

Hallerstrasse 6
3012 Bern
Schweiz

ISSI in
Numbers 🧮

Numbers don’t say it all, but some are quite telling…

Scientists visit ISSI each year to do research together

~1000

Countries worldwide are represented in the ISSI visitor data base

63+

Journal papers published by ISSI Visitors

~350/yr

Coffees produced by the ISSI coffee machine

>255k

A Mechanism for Knowledge Generation

ISSI Base

950 Square Meters
5 Meeting Rooms
3 Floors
1 Coffee Machine
3 Data Servers
20 Staff Members

Spaces

4 Science Areas
4 Publication Avenues
7 Funding Instruments

People

7718 Visitors
63 Countries
628 Teams
111 Workshops
2 Breakthrough Workshops
31 Working Groups
38 Forums

Results

1120+ Staff Publications
5000+ Visitor Papers
91 SSSI Volumes
18 Sci. Rep. Volumes
55 Spatium Issues

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