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Editorial

Editor’s Introduction

Mike Glazer

Feature article

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Feature article

A 2025 Pakistani Postage Stamp Commemorating the Discovery of X-rays

Ilia A. Guzei

Schematic stereographic projection of a diamond twin (from the monograph).
Feature article

Before X-ray Diffraction: Celebrating 115 Years of a Landmark Crystallographic Monograph

Natalia Dubrovinskaia

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Feature article

Duplicate Dilemma – when should experimental crystallographic databases be concerned about near-duplicate crystal structures?

Natalie JohnsonIan Bruno, Seth Wiggin and Matt Lightfoot

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Feature article

Insights from LACA and the MANACÁ Beamline

Miguel de Menezes Vaidergorn

Liebe and Aaron Klug in 2003 in Cambridge at the 50th anniversary celebrations of the double helix, photograph by I. Hargittai
Feature article

Aaron Klug – Centennial – Biophysicist and Biochemical Crystallographer of Broad Vision and Impact

Istvan Hargittai

Aaron Klug – Centennial – Biophysicist and Biochemical Crystallographer of Broad Vision and Impact [1]

IUCr Activities

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Outreach

Winners of the 2025 IUCr Crystal Growing Competition

We are delighted to announce the winners of the 2025 IUCr Crystal Growing Competition.

Schoolchildren were invited to convey their experiences of growing crystals through a video. The entries were judged on their creativity, aesthetic value, description of the working plan and experimental work, clarity of explanation, scientific background and safety by an international panel.

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Outreach

Celebrating Women in Science: Voices from IUCr

Cristy Nonato

https://www.youtube.com/watch?v=Q2sxHXHQ9rU

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Feature article

ROBOLAB: An Open-Access Brazilian Facility for Automated Protein Crystallization and Structural Biology

Juliana Ferreira de OliveiraGivanil Garrido, João Godoy and Celisa Tonoli

From the Community

The group photo of participants at the Opening Ceremony
Meeting Report

AsCA 2025: Advancing Crystallography and Structural Science in the Asia–Oceania Region

Chun-Jung Chen and Atsushi Nakagawa

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Meeting Report (IUCr supported)

75th Annual Meeting: Structure is Forever

Kristin Stevens

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Meeting Report (IUCr supported)

Young Crystallographers Meeting #2

Elen Duverger-Nédellec

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Outreach

Crystal Explorer Kits for Primary Schools

Stuart R. BattenBen Krinkel, Helen E. Maynard-Casely, Rosemary J. Young, Bronte A. Johnstone, Nathan L. Kilah, Alexandra C. Perry, Helen Y. McGuinness and Kate Pennycuick

Participants of the III EICr_Ibagué-2025
Meeting Report (IUCr supported)

III International School of Crystallography: X-Ray Powder Diffraction

Miguel Delgado

Articles from the journals

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Commentary

Periodic Platonic solids: the royal family of periodic nets

Wenjie Zhou

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Commission news

Can Z, the number of formula units per unit cell, be a fraction? A report of the IUCr Commission on Crystallographic Nomenclature

Carolyn P. Brock

The new Main Editors of IUCrJ. Left: Professor Leonard (Len) MacGillivray, Université de Sherbrooke, Quebec, Canada, Main Editor for the Chemistry & Crystal Engineering section (image courtesy of Université de Sherbrooke). Right: Professor Richard Garratt, São Carlos Institute of Physics (IFSC), University of São Paulo, Brazil, Main Editor for the Biology & Medicine section (image courtesy of Professor S. S. Hasnain).
Commentary

IUCrJ in 2025 – welcomes, farewells and special issues

Andrew J. Allen

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Book review

International Tables for Crystallography, Volume I, X-ray absorption spectroscopy and related techniques

James Penner-Hahn

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Commentary

Radiation damage and the case for unpatterned fixed targets

Dominik Oberthür

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Commentary

AutoLEI: A step towards automatic 3D ED data processing

Shitao Wu and Yanhang Ma

The workflow of AutoLEI for single-crystal structural analysis using 3D ED. The image of structure model is reproduced from Wang et al. (2026).

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Commentary

Exploring fibers with X-ray eyes

Cinzia Giannini

WAXS and SAXS 2D and 1D data collected on type-1 collagen fibers of equine tendon tissues. The equatorial (1) and meridional (2) WAXS peaks as well as the entire series of SAXS diffraction orders (marked with dotted vertical bars) correspond to the sub-molecular and above-molecular hierarchical structure, as detailed in Giannini, De Caro et al. (2021).

People and History

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Obituary

Dr. L. M. Pant (1928-2025)

Rajesh Gonnade and Shekhar C. Mande

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Obituary

Professor Jiban Kanti Dattagupta (1945–2026)

Shekhar C. Mande