We submitted comments on proposed federal research regulations to help ensure policies affecting #science are informed by the #researchcommunity. Read why #advocacy matters: bit.ly/4wGrwVU

Reminder: Public comments on the proposed OMB Uniform Guidance revisions close tonight (11:59 PM ET). The @acastructuralsci.bsky.social is partnering with @apsphysics.aps.org and other scientific societies to make commenting easy. Make your voice heard: www.aps.org/initiatives/...

⏰ @iucr2026.bsky.social deadlines are approaching! 📅 July 1: Registration rates increase 🏨 July 6: Official hotel & residence hall room blocks close (or sooner if full) Register and book your stay today: www.iucr2026.org #IUCr2026 #Crystallography #Calgary

🏠 Still need accommodations for @iucr2026.bsky.social? Some availability remains at @ucalgary.bsky.social in Kananaskis (from CAD $68/night) and Yamnuska Halls (from CAD $98/night). Book your stay soon—we look forward to welcoming you to #Calgary: event.fourwaves.com/iucr-2026/pa...

We are pleased to share the next set of ACA #AnnualMeeting spots! Please feel free to share! We hope to see anyone interested in #crystallography, #structuralbiology, #materialsscience, #cryoem and related #structuralscience fields in 2027, 2028 AND 2029! www.amercrystalassn.org/future-meeti...

🚨 Early registration ends TODAY @iucr2026.bsky.social! Lock in your spot and save before rates increase: www.iucr2026.org @iucrjournals.bsky.social @iucrj.iucr.org #IUCr2026 #EarlyRegistration #Crystallography #SciComm

@acastructuralsci.bsky.social - Happening today at 5:00 PM ET: Joint #MaterialsScience #NeutronScience #PowderDiffraction SIG Meeting Join the conversation - members log in at www.amercrystalassn.org #acamtg2027 #Crystallography #StructuralScience #SIGMeeting #ResearchCommunity

Final day to nominate: www.amercrystalassn.org Help us recognize outstanding members of the crystallography community—submit a Fellows or Award nomination today. #Crystallography #ACA #STEM #Awards #Nominate #StructuralScience

🚨 Final Reminder: Bursary/Travel Grant deadline is tomorrow! If you haven’t applied yet, now’s the time. Please share—especially faculty who can pass this along to students & trainees 🧑‍🎓 #crystallography #structuralscience #TravelGrant #AcademicTwitter #PhDLife event.fourwaves.com/iucr-2026/pa...

The American Crystallographic Association is accepting nominations for ACA Awards and Fellows recognizing outstanding contributions to #structuralscience through #research, #leadership, #education, and #service. 📅 Deadline: April 1 Find Out More: www.amercrystalassn.org

🚨 @iucr2026.bsky.social Abstract deadline extended to February 22 (11:59 PM ET). Share your science and be part of the program. #Crystallography #StructuralScience #CallForAbstracts #STEM

The deadline for oral abstract consideration is approaching. If your abstract isn’t in yet, now is the time. Don’t wait — submit today: www.iucr2026.org Help us build an outstanding and globally representative scientific program. #IUCr2026 #Crystallography #SubmitToday #structuralscience

@iucr2026.bsky.social Abstract Deadline: February 15 #calgary is calling - submit your work: www.iucr2026.org #Crystallography #structuralscience #StructuralBiology #MaterialsScience #Chemistry #XrayDiffraction #AcademicSky #ScienceSky #SciComm #EarlyCareerResearchers #PhDLife #PostdocLife

With appreciation from the ACA community — thank you to George N. Phillips, Jr. for his leadership and service as Editor-in-Chief of Structural Dynamics. #ACA #StructuralDynamics #OpenScience #crystallography #structuralscience

Help shape the future of structural science! Submit ideas for keynotes, workshops, and sessions for the 2027 @acastructuralsci.bsky.social meeting... Open to all—members and non-members welcome! 🔗 www.amercrystalassn.org #Crystallography #StructuralScience #ACA2027 #ACA2027andbeyond

🚨 Abstract Deadline Approaching! 🚨 There are only 32 days left to submit your abstract. Don’t miss the chance to present your work—deadline is February 15! www.iucr2026.org

This #GivingTuesday, help us strengthen the #structure of our community! 🧊✨ Your support powers student travel awards, workshops, outreach, and our growing history archives. Chip in today: www.amercrystalassn.org

⏰ Voting Closes Tonight! Don’t miss your chance to shape the future of the ACA. 🗳 Check your inbox for: ✔️ Your Member Number ✔️ Your Voting Link Cast your ballot before midnight! 👍

💠 The ACA community mourns the loss of Dr. Benno P. Schoenborn (1938–2025), a pioneer in neutron protein crystallography whose work transformed structural biology. Read more and share memories: 🔗 bit.ly/42wNvlM #crystallography #InMemoriam #ACACommunity #neutrondiffraction

📢 Reminder: The USND Business Meeting is today at 2:00 PM ET. ACA members in the U.S. are automatically USND members, and all interested in the USND transition & AUC are welcome. Go to our homepage and click the link to register for join info 👉 www.amercrystalassn.org

The @acastructuralsci.bsky.social mourns the loss of Dr. David Duchamp (1939–2025), past ACA President and longtime member. His leadership and service left a lasting mark on our community. Read more & share memories: bit.ly/4njS6zv

🇨🇦 Celebrating Canada Day ✨Today we honor the spirit, science, and strength of a nation. ➡️ 40M people, 10 provinces, 3 territories, 28 Nobel Prizes and next year, 1 unforgettable IUCr Congress in Calgary. August 11–18, 2026 🔗 www.iucr2026.org #CanadaDay #IUCr2026 #Calgary2026

Canada has shaped structural science for decades, from early protein models to today’s breakthroughs. 🧬 As IUCr2026 approaches, we celebrate its global impact in crystallography. #IUCr2026 #Crystallography #CanadianResearch #StructuralScience www.iucr2026.org

🚨📣 FINAL HOURS! 📣🚨 ⏰ Abstracts for #ACA2025 oral presentations are due TONIGHT by 11:59 PM ET! 🎤 Ready to share your research with the global 🔬#Crystallography community? 👉 Submit now: www.acameeting2025.com/call-for-abstracts #CallForAbstracts #StructuralScience #ScienceTwitter #ACA2025

🚨 Abstracts due March 31 — submit ASAP! Showcase your work in #crystallography, #structuralscience & more. 🔗 www.acameeting2025.com/call-for-abs... 📢 Already submitted? Share this with your colleagues! #aca2025 #biology #chemistry #physics #CallForAbstracts #ScienceCommunity

🚨 Don’t forget! The deadline to submit your Awards and Fellows nominations is April 1! 🏆✨ This is your chance to recognize outstanding individuals who are making a difference. Nominate someone today and help us celebrate excellence in our community! #structuralscience www.amercrystalassn.org/awards

🚨 Deadline Extended! 🚨 The ACA Travel Grant deadline has been extended for #aca2025! Don’t miss your chance to get funding for the upcoming conference. 📅 New Deadline: April 28th 🔗 Apply now: www.acameeting2025.com/travel-grant... #structuralscience #Crystallography #ACATravelGrant #ACA2025

The #ACA2025 Call for Abstracts is officially open! We welcome submissions for oral and poster presentations on the conference theme, #StructureisForever, along with cutting-edge topics in #structuralscience and #crystallography. Submit your abstract today! www.acameeting.2025.com

The #ACA2025 Call for Abstracts is now open! We invite authors to submit abstracts related to the conference theme, #StructureisForever as well as current and emerging topics in #structuralscience and #crystallography. Find out more: www.acameeting2025.com/call-for-abs...

We are saddened to hear of the passing of George Sheldrick. A dedicated professional with a distinguished career, his work and leadership touched countless lives. Our hearts go out to his family during this difficult time. Remember George with us: bit.ly/3QtoTUy