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Simon Coles and Loes Kroon-Batenburg

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Editorial

June 2026

Mike Glazer

At last, summer is upon us. Over here in Europe, we were recently “treated” to an incredible heat wave (canicule in French), breaking all records for the month of May. But now we return to the usual UK weather: cold, windy, and drizzly. So far, June is not looking much better, but there are ominous warnings for a very hot July. Ho, hum!

Feature article

Figure adapted from W. L. Bragg, “The Structure of Some Crystals as Indicated by Their Diffraction of X-rays”
Feature article

IUCr Data Matters!

Simon Coles and Loes Kroon-Batenburg

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Feature article

Interesting packings of spheres in cubic space groups (2). The symmetry of the loosest Heesch-Laves packing

Zbigniew Dauter and Mariusz Jaskolski

Benedikt Kienle
Feature article

Do it for the Science

Benedikt Kienle

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Feature article

A More Rational Order for the 230 Space Groups

Mois Aroyo and Carol Brock

This project began in 2023 with two simple questions:
 

Why is space group C2221 (#20) before space group C222 (#21) in Vol. A of International Tables for Crystallography (2016)?

From Industry

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Press Release

SAXS & XRD excites 2026: An International Hub for Scientific Exchange and Innovation

Anton Paar

From the Community

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Meeting Report (IUCr supported)

Powder Diffraction and Rietveld Refinement School

John Evans

The 2026 Powder Diffraction and Rietveld refinement school was held in Durham between 12th and 16th April 2026.

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Meeting Report

Training on Symmetry and Group Theory

Selva Balasubramaniam

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Meeting Report (IUCr supported)

CCP4 Central European Workshop 2026

Martin Malý

IUCr President Prof. Dr. Santiago García Granda
Meeting Report

6th National Crystallography Meeting successfully held in Giresun, Türkiye

The 6th National Crystallography Meeting was held on 17–19 May 2026 in Giresun, Türkiye, under the hosting of Giresun University and in collaboration with the Turkish National  Crystallographic Association. The meeting brought together researchers working in various branches of crystallography, structural science, materials characterization, and related interdisciplinary fields.

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Meeting Report (IUCr supported)

International School on Fundamental Crystallography and Workshop on Rietveld Refinement Analysis (ISFC-2026)

Dillip K. Pradhan

Articles from the journals

Illustration of a 3D-ED experiment where diffraction patterns are taken during the rotation of crystal in order to reconstruct the 3D reciprocal space. The image was generated with the help of ChatGPT by OpenAI.
Commentary

The measurement method matters

Holger Klein

Illustration of a 3D-ED experiment where diffraction patterns are taken during the rotation of crystal in order to reconstruct the 3D reciprocal space. The image was generated with the help of ChatGPT by OpenAI.

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Editorial

Neutron and photon science facilities at a crossroads: embracing innovation in a changing world

D. N. Argyriou

Letter to the Editor

A short story of the long road to cryo-EM in Portugal

Célia V. Romão and Pedro M. Matias

People and History

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Obituary

Professor, Dr.Phil. Svend Erik Rasmussen (1925–2026)

Bo Brummerstedt Iversen and Finn Krebs Larsen

Professor, Dr Phil. Svend Erik Rasmussen passed away on the 3rd of April 2026 at the age of 100. He was one of the founding professors of the Department of Chemistry at Aarhus University when it was established in 1960, and he left a profound mark on both Aarhus University and Danish chemistry.
 

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Obituary

Wolfram Saenger (1939–2026)

Norbert Sträter and Udo Heinemann

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Obituary

Sax Mason (1946-2026)

Alan Hewat (Grenoble) and Judith AK Howard (Durham)