The organizing team behind IUCr2026 is thrilled to invite the global crystallographic community to the 27th IUCr Congress and General Assembly, taking place August 11–18, 2026 in Calgary, Alberta, Canada. Hosted by the American Crystallographic Association (ACA), the Canadian National Committee for Crystallography (CNCC), and the newly proposed American Union of Crystallography (AUC), the Congress will gather thousands of researchers to share discoveries, build collaborations, and celebrate the vibrancy of structural science. The event will be held in the stunning new BMO Centre at Stampede Park, a state-of-the-art convention venue located in the heart of downtown Calgary. SUBMIT YOUR ABSTRACT Researchers from every corner of crystallography and related disciplines are encouraged to submit their work for consideration in the program alongside plenaries, keynotes, microsymposia, and posters. Abstracts are due February 15, 2026: https://event.fourwaves.com/iucr-2026/pages/b6e43edc-5911-42bb-9edf-f3f2cc8c783c Full list of microsymposia and daily schedule: https://event.fourwaves.com/iucr-2026/pages/f5b63362-5e7e-41fd-bc25-c0c7a3f55fca REGISTER Register before March 31, 2026 for discounted rates at https://event.fourwaves.com/iucr-2026/registration HOUSING Delegates have access to a variety of housing options, from convenient university dormitories to modern downtown hotels, making IUCr2026 accessible for every budget and preference. Book accommodations: https://event.fourwaves.com/iucr-2026/pages/f32fdea2-a79c-416d-95e8-c0d79f9987ee TRAVEL PLANNING As you prepare to join us in Calgary, we encourage delegates to plan your travel early. International participants in particular should allow plenty of time to apply for the required visa, as processing times can vary greatly. Visa information: https://event.fourwaves.com/iucr-2026/pages/b3bf5575-9334-4be5-9074-9cd58a2f3644 ------------------------------------------------------------------------------------------ CHRISTINE ZARDECKI Associate Director, RCSB Protein Data Bank Institute for Quantitative Biomedicine Rutgers, The State University of New Jersey 174 Frelinghuysen Road, Piscataway NJ 08854 E: christine.zardecki@rcsb.org RCSB.org <https://rcsb.org/> | linkedin <https://www.linkedin.com/company/rcsb-protein-data-bank> | facebook <https://www.facebook.com/RCSBPDB> | twitter <https://twitter.com/buildmodels> | bluesky <https://bsky.app/profile/rcsbpdb.bsky.social> | youtube <https://www.youtube.com/user/RCSBProteinDataBank>