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/...

📢 ACA Joins National Scientific Advocacy Effort! We are proud to partner with @apsphysics.aps.org, alongside dozens of other scientific societies, encouraging the research community to submit comments on the proposed OMB revisions. Make your voice heard: www.aps.org/initiatives/...

OMB proposed rule for federal financial assistance

Find out more about the Office of Management and Budget's proposed federal grant funding changes and how APS is responding to this existential threat to the scientific community.

aps.org

We are saddened by the passing of longtime ACA member Dr. Ian David Brown, known to friends and colleagues as David. A pioneer of the bond valence model, he will continue to inspire #structualscientists for generations. Read more on the ACA website: www.amercrystalassn.org/index.php?op...

⏰ @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...

"The key is silica!" en.ara.cat/128_579733?u...

Juan Manuel García-Ruiz:

Professor of crystallographic studies

en.ara.cat

🚨 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

On #InternationalWomenandGirlsinScienceDay, we are reflecting on the women who shaped structural science — and those shaping it today. Legacy isn’t static. It’s something we build: bit.ly/460xyWE #womeninscience #crystallography #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

Advancing Ultrafast #StructuralScience ⚡ New research in Structural Dynamics (@aip-publishing.bsky.social) improves ultrafast electron diffraction with shot-to-shot acquisition—revealing structural change in real time: pubs.aip.org/aca/sdy/arti...

Shot-to-shot acquisition ultrafast electron diffraction

We demonstrate a novel shot-to-shot acquisition method for optical pump—keV electron energy probe in ultrafast scattering experiments. We integrate a phase-lock

pubs.aip.org

🚨 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! 👍

Congratulations to the #2025NobelPrize Laureates in Physics: John Clarke, Michel H. Devoret & John M. Martinis honored for discoveries in quantum tunnelling and energy quantisation in electric circuits. Inspiring work at the intersection of #physics and #chemistry! www.nobelprize.org/prizes/physi...

Nobel Prize in Physics 2025

The Nobel Prize in Physics 2025 was awarded jointly to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an...

nobelprize.org

💠 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

🧬 “Human curiosity… is perhaps the best secret weapon of all.” – Aaron Klug @nobelprize.bsky.social: using #Xraycrystallography & #electronmicroscopy, he revealed DNA, protein & virus structures—showing why #crystallography matters: www.nobelprize.org/prizes/chemi...

Our Editor-in-Chief, George N. Phillips, Jr., is retiring after a remarkable five years of dedicated service. Join us on Saturday, July 19 from 5:00 - 6:00pm CDT at #ACA2025, Booth 12, to celebrate his time as Editor-in-Chief! 🎉‪ @acastructuralsci.bsky.social

🇨🇦 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