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.
International Space Science Institute (ISSI)Hallerstrasse 6
3012 Bern
Switzerland
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
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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
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Job Posting: Director of Heliophysics or Planetary Science (30%)
ISSI invites applications for a part time position of Director of Heliophysics or Planetary Science
Deadline for Applications: May 4, 2026
18 March 2026
Image: ESA & NASA/Solar Orbiter/EUI team; Data processing: E. Kraaikamp (ROB)
