What is it about?

Open Science is a major international movement supported by organisations such as the United Nations, UNESCO and the International Science Council. This article reviews the evolving Open Science landscape through the example of crystallography. It argues that there is no single universally accepted definition of Open Science. While some advocates favour “open by default”, UNESCO’s 2021 Recommendation adopts the more nuanced principle of “as open as possible, as closed as necessary”, recognising the need to balance openness with considerations of context such as intellectual property, privacy, security, Indigenous rights and commercial innovation. Many practices now associated with Open Science have long been part of crystallography. The discipline pioneered systematic data sharing through resources such as the Cambridge Structural Database and the Protein Data Bank, and more recently through the archiving of raw experimental data. These developments support reproducibility, validation, data reuse and the growing application of artificial intelligence and machine learning. The article also explores data quality, peer review, publication of negative results, principal investigator responsibilities, industrial participation, global inequalities in scientific publishing, Citizen Science and Open Educational Resources. It highlights the International Union of Crystallography’s ( IUCr) contributions through its journals, databases, Teaching Pamphlets and Online Dictionary of Crystallography. The article further shows that Open Science is interpreted differently across regions of the world, reflecting differing priorities regarding openness, innovation, data sovereignty, equitable participation and societal benefit.

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Why is it important?

The article argues that Open Science should be understood as responsible openness rather than openness for its own sake. Open sharing can accelerate discovery, improve reproducibility and broaden participation in science, but it must be accompanied by attention to data quality, validation, governance and legitimate restrictions where necessary. The article highlights unresolved challenges, including how to balance rapid sharing of information during emergencies and disasters with the need for validation and quality assurance. In some circumstances delaying release may slow scientific and societal responses, while releasing unvalidated information may undermine trust. Such tensions may not admit a single solution applicable to all situations. Crystallography provides a mature example of how openness, quality assurance and community standards can be combined. Its experience offers useful lessons for wider Open Science policy. Actions arising from my article’s analyses to further dissolve Global South and Global North asymmetries are suggested. IUCr Journals can already document a truly global reach across a very large number of countries and industries, within consistent standards, including linking of publications to their underpinning data. My article shows a map, and tabulates the underpinning data, of numbers of publications in IUCr Journals by country and their total number of citations. Furthermore, IUCr Journals is breaking down Global North and Global South power asymmetries through the large number and wide geographic spread of its co-editors. Likewise, the IUCr offers wide participation through its General Assembly and provides financial support in the form of conference bursaries and article processing charge waivers. These data altogether allow the IUCr to see explicitly where further training initiatives could have most local impact.

Perspectives

Representing the IUCr at UNESCO, United Nations and International Science Council (ISC) events over the past three years gave me a valuable opportunity to observe international discussions on Open Science and global scientific cooperation. I was impressed by the sustained efforts being made to address asymmetries between the Global North and Global South. At the same time, I felt that the role of industry in scientific innovation and societal benefit sometimes received less attention than it deserved. This led me to explore more deeply the roles of governments in supporting innovation, promoting economic development and regulating against monopolies in order to protect competition and consumer choice. In parallel, I reflected on my own 50 years in science and on efforts to make my laboratory's research findings as openly available as possible, including to the wider public. I also worked closely with industry, helping to expedite confidential industrial research through the UK Synchrotron Radiation Source beamlines that I had developed, while promoting the widest possible scientific access to these facilities within the UK, across Europe and, more broadly, as part of a global instrumentation commons. My IUCr service also highlighted opportunities for further progress. For example, IUCr Journals are uniquely placed to analyse publication and citation patterns across countries, regions and industrial sectors. Such evidence could help identify where training, publishing support and other initiatives might have the greatest impact in reducing scientific asymmetries, broadening participation in global research and supporting economic development, consistent with the United Nations Sustainable Development Goals 9 (Industry, Innovation and Infrastructure) and 8 (Decent Work and Economic Growth). Looking back over five decades of scientific research, facility development, industrial collaboration and IUCr service, these reflections have reinforced my view that Open Science is most effective when openness, quality, innovation and societal benefit are considered together rather than treating openness as an end in itself.

Professor John Richard Helliwell
University of Manchester

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This page is a summary of: Crystallography in Open Science and its open educational resources, Acta Crystallographica Section A Foundations and Advances, June 2026, International Union of Crystallography,
DOI: 10.1107/s2053273326004146.
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