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International Space Science Institute (ISSI)

@issibern.ch
1.1K followers 359 following 229 posts

The International Space Science Institute (ISSI) in Bern, Switzerland, is an institute of advanced studies where scientists from all over the world meet to discuss and publish about the most-pressing science topics. Visit us on www.issibern.ch

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International Space Science Institute (ISSI) @issibern.ch · 01/10/2026
This ISSI Team studies how small-scale flux ropes erupt in the solar corona and propagate into the heliosphere. Using Parker Solar Probe, Solar Orbiter, WIND, STEREO & SDO data plus simulations, they trace these structures from Sun to interplanetary space. ☀️ 🔭🛰️ ➡️ teams.issibern.ch/magneticflux...
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International Space Science Institute (ISSI) @issibern.ch · 16/09/2026
Call for the 2027 Johannes Geiss Fellowship! Apply by October 9, 2026 for the opportunity to conduct independent research (Astrophysics, Heliophysics, Planetary or Earth Sciences) in Bern, Switzerland. Details: www.issibern.ch/jgf-applicat... #SpaceScienceOpportunity #JGF #ISSI 🔭
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International Space Science Institute (ISSI) @issibern.ch · 08/09/2026
At ISSI, we like to think that our doors are open to some of the sharpest minds in space science and, as it turns out, to a bit of crayon-wielding creativity too. 🖍️🔭 See what happens when world-class research meets a more colourful kind of curiosity: www.issibern.ch/where-nobel-... 💙
The famous ISSI Guestbook
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International Space Science Institute (ISSI) @issibern.ch · 03/09/2026
ISSI Team #644 is zooming in on the aurora. Literally. Led by Larry Kepko & Sara Gasparini, the team is unpacking mesoscale magnetosphere-ionosphere coupling. Read more about the team's work: lnkd.in/e72dw2sg
Group picture of ISSI International Team 644 led by Larry Kepko and Sara Gasparini.
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International Space Science Institute (ISSI) @issibern.ch · 02/09/2026
What if satellite data could help measure the genetic diversity of life on Earth? 🌍🛰️ This week, the "Genes from Space" Working Group is meeting to advance an Earth Observation-powered tool for calculating genetic indicators.
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International Space Science Institute (ISSI) @issibern.ch · 02/09/2026
While @unep.org released their report today, the newest issue of SPATIUM, authored by @benpoulter.bsky.social and edited by @fabiocrameri.ch, focusses on #EarthObservation in the Era of #ClimateOvershoot. 📖 Read the full issue: www.issibern.ch/spatium @sparkclimate.bsky.social #ClimateSky
Pro ISSI SPATIUM #56 cover, titled "Earth Observation in the Era of Climate Overshoot", authored by Benjamin Poulter and edited by Fabio Crameri.
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International Space Science Institute (ISSI) @issibern.ch · 12/08/2026
☀️ 🌗🌍 The Moon is 400x smaller than the Suwebdesign's – by pure coincidence – also about 400x closer to us. Hence, they both seem to be the same size! Never stare directly at the Sun, eclipsed or not! You need certified ISO12312-2 eclipse glasses. Video by Eyeloveyou, our partner in webdesign.
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International Space Science Institute (ISSI) @issibern.ch · 10/08/2026
Is 60 years of radiation belt physics hiding a Jackson Pollock inside a Mark Rothko? Read "Sprinkles in Disguise" decorated by our very own in-house artist Cosima-Lea Baier: lnkd.in/gCdm5zi4 #SciArt #SpaceScience 🐡🔭
Painting of smooth, "diffusive-looking" observational signature by Cosima-Lea Baier, ISSI.Painting artistically representing the fine, filamentary, deterministic structure of the Earth’s radiation belts by Cosima-Lea Baier, ISSI.
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International Space Science Institute (ISSI) @issibern.ch · 04/08/2026
Ever heard of #faculae and #swirls, or #spicules, dynamic #fibrils, #jets, #jetlets, and #campfires? These are the phenomena that ISSI International Team #604 “Small-scale eruptive events in the Sun” is studying! Read more about their project on: teams.issibern.ch/small-scalee...
Onsite ISSI International Team 604 picture Online ISSI International Team 604 picture
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International Space Science Institute (ISSI) @issibern.ch · 23/07/2026
Cold plasma in the Earth’s ionosphere and plasmasphere plays a critical role in near-Earth space, driving wave-particle interactions, coupling processes, and radio wave propagation. ∿ ∿ ∿ See what ISSI Working Group ‘ATIP’, led by Artem Smirnov and Fabricio Prol, is up to: collab.issibern.ch/atip/ 🔭
Team picture of the ISSI Working Group ATIP led by Artem Smirnov and Fabricio Prol.
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International Space Science Institute (ISSI) @issibern.ch · 22/07/2026
Congratulations to the 33 newly selected International Teams in Space and Earth Sciences 2026 🔭 ➡️ www.issibern.ch/newly-select...
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International Space Science Institute (ISSI) @issibern.ch · 21/07/2026
The shape of the heliosphere, the bubble formed by the solar wind as the Sun moves through the galaxy, is currently being debated – in particular the looks of its tail. The ISSI Int. Team #613 led by Marc Kornbleuth is tackling this critical problem. ☀️ More: teams.issibern.ch/particleacce... 🔭
ISSI International Team 613 group picture including Marc Kornbleuth (Boston University, USA).
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International Space Science Institute (ISSI) @issibern.ch · 21/07/2026
Where does the Electron Superhalo, a faint but ever-present population of unusually energetic electrons in the solar system, come from? ☀️ ISSI Int. Team #656 led by Domenico Trotta tries to uncover exactly that. Read more: teams.issibern.ch/superhaloeni...
ISSI International Team picture with Domenico Trotta (ESA), Laura Hayes, and others.
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International Space Science Institute (ISSI) @issibern.ch · 14/07/2026
Evolution of the Solar System: Constraints from Meteorites How did our Solar System form and evolve? This new volume edited by D. Hezel, H. Palme, K. Mezger, A. Morbidelli & J. Zipfel, brings together leading experts to explore exactly that.
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International Space Science Institute (ISSI) @issibern.ch · 09/07/2026
🔭 How do solar energetic particles travel from the Sun to Mars' surface? This week's International Team is modelling this journey - through the heliosphere & Martian atmosphere - to support future Mars missions & improve radiation risk assessment. Read more: teams.issibern.ch/solarparticl...
International Team #25-652  "Impact of Solar Energetic Particles on Mars: Enhancing Space Weather Insights for Future Exploration" led by Marco Pinto and Laura Rodríguez-García.
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International Space Science Institute (ISSI) @issibern.ch · 08/07/2026
🔭 This ISSI Team - led by G. Thomas - is developing new techniques to homogenise large spectroscopic surveys onto a common scale – essential for studying the Milky Way as a whole (e.g. combining Northern & Southern hemisphere data). Discover more teams.issibern.ch/asteroshop/
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International Space Science Institute (ISSI) @issibern.ch · 02/07/2026
What do the chemical abundances of distant galaxies tell us about the stars that made them? 🌌🔭 This week at #ISSI, experts including Allison Strom, Danielle Berg, Corinne Charbonnel, Brian Welch, and Antonella Nota are meeting to ponder this question! workshops.issibern.ch/distant-galaxies
ISSI Workshop poster by Fabio CrameriISSI Workshop group picture in front of the Bernese skyline including Allison Strom, Danielle Berg, Antonella Nota, and Brian Welch.
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International Space Science Institute (ISSI) @issibern.ch · 29/06/2026
Hey #EAS2026 community! If you are in Lausanne this week, stop by the ISSI booth and say 'Hi'! Whether you are curious about the research opportunities, looking for collaborations, or just goodies, come find us on the blue carpet! 🟦 @raducan.bsky.social @fabiocrameri.ch
Sabina Raducan and Fabio Crameri at the ISSI booth during EAS26.
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International Space Science Institute (ISSI) @issibern.ch · 24/06/2026
Our 2025 Annual Report is here, and for the first time, it's fully digital! Dive into all our activities, highlights, and results. 👉 Here you can explore the digital report www.issibern.ch/annualreport...
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International Space Science Institute (ISSI) @issibern.ch · 23/06/2026
"Excitation and Dissipation of Kinetic-scale Fluctuations in Space Plasmas" …is the focus of this week's ISSI International Team #612, led by Kristopher Klein and Daniel Verscharen. 🔭
ISSI International Team 612 group pictures with co-conveners Daniel Verscharen and Kristopher Klein.
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International Space Science Institute (ISSI) @issibern.ch · 11/06/2026
Amina Helmi, member of the ISSI Board of Trustees, receives the 2026 Prize in Astrophysics @kavliprize.bsky.social! This honour is a wonderful recognition of a remarkable scientific journey, from galactic archaeology to mapping dark matter. Warmest congratulations from the ISSI family, Amina! 🏅✨
Amina Helmi, congratulations from ISSI for the Kavli Prize. Picture by LiwligNorway
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International Space Science Institute (ISSI) @issibern.ch · 11/06/2026
Incoherent Scatter – An Invaluable Tool in the Field of Space and Plasma Physics For >70 years, incoherent scatter radars have been the gold standard in remote sensing for ionospheric plasma physics and upper atmospheric coupling, yet there is no unified textbook.
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International Space Science Institute (ISSI) @issibern.ch · 10/06/2026
🔭 This week we are hosting a Team working on "Active Region Evolution Under the Spotlight, with Unprecedented Coordinated High-Resolution Stereoscopic Observations and Numerical Simulations" led by K. Barczynski (ETH Zurich & PMOD/WRC) @louise-solar.bsky.social teams.issibern.ch/activeregion...
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International Space Science Institute (ISSI) @issibern.ch · 02/06/2026
…just saying. 😉 #SatisfyingFollowingAhead
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International Space Science Institute (ISSI) @issibern.ch · 28/05/2026
This week at ISSI we are hosting the Forum “Challenges and Advances in Remote Sensing of Coastal Sea Level with Ground-based GNSS-IR.” Bringing together ocean, sea level, and geodetic communities to advance GNSS-IR for improved coastal sea-level monitoring. forum.issibern.ch/remote-sensi...
Participants of the Forum "Challenges and Advances in Remote Sensing of Coastal Sea Level with Ground-based GNSS-IR"
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International Space Science Institute (ISSI) @issibern.ch · 22/05/2026
How are structures in Earth’s magnetic and plasma environment, called the #Magnetosheath, formed and how do they propagate towards the Earth? Ask ISSI International Team #627 led by Martin Volwerk & Tomas Karlsson! 👉 teams.issibern.ch/magnetosheath/ 🔭
Figure showing the bow shock and the resulting magnetosheath from a magnetohydrodynamic (MHD) simulation by the ISSI Team 627.
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International Space Science Institute (ISSI) @issibern.ch · 15/05/2026
ISSI International Team #634, “WAVE-GAP – Watching Atmospheric Variability Evolve in the Global Absence of Satellite Platforms?”, led by M. Bramberger and C. Wright, is identifying present and future gaps in atmospheric wave observations and modelling. 🛰️🔭
ISSI International Team 634 picture saying “Mind the GAP”.
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International Space Science Institute (ISSI) @issibern.ch · 15/05/2026
Flare ribbon fine-structure: where does it come from and what can it tell us? ISSI International Team #658, led by P. Wyper and J. Dahlin, is investigating the fundamental causes of this fine structure, in order to discover what it reveals about solar eruptions. ☀️🔭
ISSI International Team picture
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International Space Science Institute (ISSI) @issibern.ch · 14/05/2026
ISSI International Team 616, “Multi-scale Understanding of Surface-Exosphere Connections (MUSEC)“, led by Liam Morrissey and Sébastien Verkercke, brings together theoretical, observational, and experimental expertise to better understand key planetary processes on airless bodies.
ISSI International Team 616 group picture in front of the ISSI Mural.
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International Space Science Institute (ISSI) @issibern.ch · 01/05/2026
Space weather effects appear to level off during extreme solar wind conditions. – Is this a real physical effect, or the result of uncertainties in the measurements? ISSI International Team 654 led by N. Sivadas and M. Walach is working to resolve this issue. #SpaceWeather #SolarWind
ISSI International Team 654 picture
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International Space Science Institute (ISSI) @issibern.ch · 27/04/2026
ISSI International Team #641 led by @hayesla.bsky.social and Hannah Collier is working to make full use of Solar Orbiter’s Major Flare Campaigns by cataloguing all observed events. Watch this space: teams.issibern.ch/solarflare/
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International Space Science Institute (ISSI) @issibern.ch · 24/04/2026
ISSI International Team #649, “Maximizing the Potential of X-ray Polarimetric Data to Understand Accreting Black Holes”, led by Honghui Liu and Cosimo Bambi, aims to provide new insight into the innermost regions around black holes. Read more: teams.issibern.ch/accretingbhs/
ISSI International Team 649
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International Space Science Institute (ISSI) @issibern.ch · 23/04/2026
🌌 What a night at Astronomy on Tap Bern! Corinne Charbonnel and Mark Gieles, researchers of the ISSI International Team 636, had us listen to the universe's most dramatic events (literally!). Thank you all 💙, and see you at the next one! 🔭 #AstronomyOnTap#Bern#Astrophysics
Fabio Crameri introducing the International Space Science Institute (ISSI) and how it supports great science by bringing scientists together and fostering collaboration within diverse teams.Corinne Charbonnel (University of Geneva) presenting her talk.
Mark Gieles introducing gravity and orbital dynamics.
Thibaut Roger showcasing the orbital dynamics experiment.
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International Space Science Institute (ISSI) @issibern.ch · 22/04/2026
"Exploring the Distant Universe at Small Scales with Gravitational Lensing" Save the date for the next live webinar with Brian Welch hosted by @antonellanota.bsky.social 🗓️ April 30 (17h CEST) Details: www.issibern.ch/game-changer... #Hubble #JWST #Astronomy #Astrophysics
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International Space Science Institute (ISSI) @issibern.ch · 21/04/2026
A new collection — resulting from an ISSI Workshop — brings together interdisciplinary results derived from Cassini data, shedding light on the essential mechanisms governing Saturn's rings and satellites. ➡️ link.springer.com/collections/... #Saturn #Cassini #PlanetaryScience #Planetology
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International Space Science Institute (ISSI) @issibern.ch · 17/04/2026
Why do the Sun and Sun-like stars show cyclic magnetic activity, and how do these cycles change as stars evolve? International Team #629 led by T. Zaqarashvili, is tackling this open questions in solar and stellar physics. 🌟 Watch this space: teams.issibern.ch/variabilityi...
ISSI International Team #629 picture
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International Space Science Institute (ISSI) @issibern.ch · 16/04/2026
"What are the spins of stellar-mass black holes?" 💫 A fascinating question asked and studied by our International Team #660, led by Alexandra Veledina & Andrzej Zdziarski. Check out the team webpage for more information: teams.issibern.ch/stellar-mass... 🔭
ISSI International Team 660 picture with Alexandra Veledina and A. Zdziarski.
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International Space Science Institute (ISSI) @issibern.ch · 01/04/2026
The shielding🛡️ of our planet from charged solar particles is not perfect. ISSI International Team 633, "Magnetospheric Cusps: Multiscale Plasma Dynamics and Energy Flows” aims to improve our understanding of plasma dynamics and energy flows on the global magnetosphere-ionosphere system. 🔭
ISSI International Team 633 picture
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International Space Science Institute (ISSI) @issibern.ch · 27/03/2026
International Team 643 led by Allison Jaynes and V. Lynn Harvey study the contribution of auroral precipitation to ozone changes in the middle atmosphere. Check out this team and track their progress here: teams.issibern.ch/ozonechanges/ 🔭
ISSI International Team 643 picture in front of the Bernese skyline.
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International Space Science Institute (ISSI) @issibern.ch · 26/03/2026
ISSI International Team 603 led by Anupam Bhardwaj aims to reach 1% precision in stellar luminosities by combining Gaia data with advanced models and multi-wavelength observations. Read more: teams.issibern.ch/expanding/ ✨🔭
ISSI International Team 603 picture in front of the ISSI Mural.
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International Space Science Institute (ISSI) @issibern.ch · 19/03/2026
We are hosting an ISSI Forum on “Global Navigation Satellite Systems (#GNSS🛰️) for Monitoring Earth Deformation: Challenges in Resolving Subtle Ground Motion in Climate and Tectonics”, which aims to quantify detectability limits of related deformation signals. More: forum.issibern.ch/gnss-monitor...
ISSI Forum team picture
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International Space Science Institute (ISSI) @issibern.ch · 19/03/2026
📢 ISSI is hiring a Director of Heliophysics or Planetary Science (30%). A part-time leadership role for an internationally recognised scientist > shaping our scientific portfolio in Bern from October 2026. Deadline: 4 May 2026 👉 issibern.ch/job-posting-director-heliophysics-or-planetary-science/
ISSI Job posting graphic
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International Space Science Institute (ISSI) @issibern.ch · 12/03/2026
Are the products of star formation independent of the properties of the star-forming environment? This week at ISSI, we are hosting International Team 639 led by M. Guarcello to address this key question in astrophysics. Stay tuned! ✨🔭
Westerlund 1 (wide-field view): A dense cluster of bright stars, each with six large and two small diffraction spikes, due to the telescope’s optics. They have a variety of sizes depending on their brightness and distance from us in the cluster, and different colours reflecting different types of star. Patches of billowing red gas can be seen in and around the cluster, lit up by the stars. Small stars in the cluster blend into a background of distant stars and galaxies on black. Credit:ESA/Webb, NASA & CSA, M. Zamani (ESA/Webb), M. G. Guarcello (INAF-OAPA) and the EWOCS teamISSI International Team picture
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International Space Science Institute (ISSI) @issibern.ch · 06/03/2026
🌅 Solar flares are explosive events on the Sun and fundamental drivers of space weather, but understanding the physical processes remains a major challenge. ISSI Team 630, “Next-Generation Solar Flare Modelling”, led by Joel Allred and Malcolm Druett aims to bridge the multi-dimensional gap. 🧑‍💻🔭
ISSI International Team 630 picture.
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International Space Science Institute (ISSI) @issibern.ch · 28/02/2026
🔔 Only two weeks left to apply to ISSI International Teams! Bring together leading experts and early-career researchers from around the world to meet in Bern (Switzerland) and/or Beijing (China) with ISSI’s financial support. ⏳ Submission deadline: March 13 www.issibern.ch/call-for-pro...
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International Space Science Institute (ISSI) @issibern.ch · 27/02/2026
This week, we are hosting International Team 635, led by Jérémy Dargent. The goal is to trace the journey of ionospheric plasma across the magnetosphere and understand the mechanisms that power it up along the way. Read more about the team's work: lnkd.in/ewJgzswp 🔭
ISSI International Team #635 picture
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International Space Science Institute (ISSI) @issibern.ch · 25/02/2026
Today at ISSI, we had the pleasure of hosting the CSH+ Lunch Seminar with Prof. Miki Nakajima @mikinakajima.bsky.social (University of Rochester, US) and Dr. Simon Lock (University of Bristol, UK). 🔭 Thank you to our speakers and to everyone who joined us! 💫 @unibe.ch
Dr. Simon Lock presenting at ISSI.Prof. Miki Nakajima presenting at ISSI.ISSI Programme Manager Sabina Raducan introducing ISSI to the audience.Audience gathering at ISSI for a seminar.
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International Space Science Institute (ISSI) @issibern.ch · 20/02/2026
Welcoming back International Team 602: “Multiphase Outflows in Galaxies at Cosmic Noon”, led by Sirio Belli and Rebecca Davies teams.issibern.ch/multiphaseou... Their goal is to understand the interplay between gas, stars, & supermassive black holes of galaxies in the early Universe.
ISSI International Team 602 picture in front of the ISSI Mural.
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International Space Science Institute (ISSI) @issibern.ch · 13/02/2026
Our International Team 648, “Understanding Nuclear Spin Temperatures in Astronomical Environments” led by Manuela Lippi and Geronimo Villanueva, is tackling a compelling question: What molecular spin ratios tell us about planetary formation and evolution of ices?🧊 teams.issibern.ch/nuclearspint...
ISSI International Team 648 picture in front of the ISSI Mural.
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International Space Science Institute (ISSI) @issibern.ch · 12/02/2026
💡How does light behave in the strongest magnetic fields in the Universe? Our International Team 657, “Polarimetric Insights into Extreme Magnetism”, led by S. Tsygankov (@utu.fi) and R. Taverna (University of Padua) is exploring the mysteries of neutron stars. ℹ️ teams.issibern.ch/extrememagne...
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