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

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

Highlights and Nuggets

Contributions from Fabio Crameri

Credit: Nichole Ayers / NASA

Sprites, Elves, and Giants: Lightning’s Strange Family in the Upper Atmosphere

Webinar with Alejandro Luque

28th May 2026
(17:00 CEST | 11:00 EDT)

Game Changers Online Seminar

Published: 19 May 2026

Space Weather
Game Changers Webinar
Atmosphere
Earth-set beyond the Moon captured through the Orion spacecraft window. Image credit: NASA, Christina Koch
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The Curious Case of the Lunar Dynamo

Pro ISSI Talk with Claire Nichols

(J. Geiss Fellow 2026 and University of Oxford, UK)

May 20, 2026 (18:15 CEST)

Venue: ISSI, Hallerstrasse 6, 3012 Bern

04 May 2026

Credit: NASA, ESA, CSA, S. Finkelstein (University of Texas)
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Exploring the Distant Universe at Small Scales with Gravitational Lensing

Webinar with Brian Welch
(ISSI, Bern, Switzerland)

recorded April 30, 2026

01 May 2026

Conceptual overview of the Local Distance Network, a multi-route approach to deriving the Hubble constant in our universe. Included are a non-exhaustive collection of various methods for determining galactic distances and how these can connect the absolute scale established through geometric means to the Hubble constant H0. Background rectangles illustrate the positions of Rung 1, Rung 2 and Rung 3 in a traditional distance ladder from left to right. The Scientific colour map ‘hirta‘ (from www.fabiocrameri.ch/colourmaps) is used to make the colour coding accessible to all readers. This graphic by Fabio Crameri (ISSI Bern) based on the original by Richard Anderson and the H₀DN Collaboration (2025) is available via the open-access s-ink.org repository: https://s-ink.org/local-distance-network
Conceptual overview of the Local Distance Network, a multi-route approach to deriving the Hubble constant in our universe. Included are a non-exhaustive collection of various methods for determining galactic distances and how these can connect the absolute scale established through geometric means to the Hubble constant H0. Background rectangles illustrate the positions of Rung 1, Rung 2 and Rung 3 in a traditional distance ladder from left to right. The Scientific colour map ‘hirta‘ (from www.fabiocrameri.ch/colourmaps) is used to make the colour coding accessible to all readers. This graphic by Fabio Crameri (ISSI Bern) based on the original by Richard Anderson and the H₀DN Collaboration (2025) is available via the open-access s-ink.org repository: https://s-ink.org/local-distance-network
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A Global Astronomical Collaboration Achieves a 1% Precision Measurement of the Universe’s Local Expansion Rate

Press release

10 April 2026

Image: ESA & NASA/Solar Orbiter/EUI team; Data processing: E. Kraaikamp (ROB)