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Advancing structural science globally.

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What we do

Growing crystallography around the world through education & capacity-building.

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Congress

The most important international conference for structural scientists. 

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World Directory

World Directory of Crystallographers and of Other Scientists Employing Crystallographic Methods.

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The Cost of Knowledge

International Open Access Week 2026

From open access and reusable data to trusted standards, validation and education, discover how the IUCr supports Open Science across the global structural science community.

Newsletter 2026 · Volume 34 · Number 5Archive · Editorial Board

/ Book review

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

Community / Obituary

Rajagopala Chidambaram (1936–2025)

/ Editorial

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

/ Commentary

Sometimes Mother Nature only whispers

Thanks to our partners

Announcements

Geographical distribution of published papers in the IUCr Journals, 2016 to 2025.
Announcement

IUCr marks International Open Access Week 2026

International Open Access Week takes place from 19–25 October 2026 under this year’s theme, “The Cost of Knowledge”. The theme asks the research community to consider what is required to create, share and sustain reliable scientific knowledge.

19 Oct 2026
Announcement

IUCr-Wiley Publishing Partnership Announcement

The International Union of Crystallography (IUCr) is expanding its publishing partnership with Wiley to support the long-term future of the IUCr journals.

7 Oct 2026
Electric Voice Theatre, UC8 and the Clerkenwell Community Choir
Announcement

The Peaceful Crystallographer - and Other Songs

Join Electric Voice Theatre at Conway Hall for a singing celebration of Kathleen Lonsdale – the first female professor at UCL and one of the first female Royal Society Fellows. Defying all odds, her pioneering science led to breakthroughs in organic chemistry and medical treatments.

9 Sep 2026
portraits of the laureates
Announcement

Cockroach milk crystals reveal an unusual solution to protein crystallization

2026 Ig Nobel Prize-winning researchers Ramaswamy Subramanian, Leonard Chavas and Nathan Coussens were among the authors of a remarkable study that revealed how naturally formed protein crystals in the viviparous cockroach Diploptera punctata challenge conventional ideas about protein crystallization.

3 Sep 2026

Meetings & Webinars

20

Oct

Riobamba, Ecuador

IV International School on Crystallography: X-Ray Powder Diffraction

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22

Oct

Virtual,

Distinguished Lectures on Quantum Crystallography and Complementary Fields 62 & 63

22

Oct

Athens, Greece

HeCrA Satellite Workshops

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08

Nov

Harwell, United Kingdom

CCP-EM/Diamond Icknield Workshop

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all events
IUCr Congress and General Assembly
Berlin, Germany
18-25 August 2029
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/events/2029/august/twenty-eighth-congress-and-general-assembly-of-internationa…
Regional Associate Meetings
ECM-36
Prague
23–28 August 2027
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/events/2027/august/ecm-36
76th Annual Meeting of the ACA: The Structural Science Society
San Jose, CA
3–7 Aug 2027
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/events/2027/august/76th-annual-meeting-of-aca-structural-science-society
AsCA 2027
Bangkok
29 Nov – 3 Dec 2027
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/events/2027/november/asca-2027
LACA VII
San Martín, Buenos Aires Province
6–8 Oct 2027
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/events/2027/october/laca-viii
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