Structural science is strongest when the community comes together

ACA connects researchers, educators, and practitioners across techniques, applications, and career stages—offering meetings, travel support, recognition, leadership, and a network that extends beyond ACA through society and industry partnerships.

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Advancing Ultrafast Structural Science

New research in Structural Dynamics demonstrates a shot-to-shot acquisition method that significantly improves ultrafast electron diffraction measurements, enabling clearer views of how structures change in real time. ACA members’ research belongs in Structural Dynamics—and members receive a discount on article submissions, making it even easier to share cutting-edge work with the structural science community.

Community Input for the ACA 2027 Meeting

Planning for the ACA 2027 Annual Meeting is underway, and we invite the community to help shape the program. We welcome suggestions for keynote speakers, workshop topics, and scientific sessions that reflect emerging ideas, important challenges, and exciting developments across the crystallographic sciences. If you have an idea you’d like to share, please complete the 2027 Program Suggestions Form. Your input will be shared with the appropriate Scientific Interest Groups and meeting committees as they begin program development, helping ensure the meeting reflects the interests and priorities of our diverse community.

Submit Your Idea

Join Us in Calgary for the 27th IUCr Congress & General Assembly

The American Crystallographic Association is proud to co-host the 27th International Union of Crystallography (IUCr) Congress and General Assembly, taking place August 11–18, 2026, in Calgary, Alberta, Canada.

This global gathering will bring together thousands of scientists to celebrate the latest advances in crystallography, structural science, and materials research. With an exciting scientific program, hands-on workshops, international exhibitors, and opportunities to connect with colleagues from around the world, IUCr 2026 promises to be a landmark event for our community.

• Call for Abstracts — share your latest research and be part of the scientific program.

• Registration — secure your spot early and take advantage of discounted rates.

• Accommodation Booking — explore exclusive room blocks and special rates at Calgary hotels.

Learn more and start planning your journey to Calgary at www.iucr2026.org.