Yale University

The official X account of Yale University.

[Yale University @Yale]

For decades, the standard model of dark matter has explained how the universe is structured at large scales.

A new Yale study suggests that inside galaxy clusters, the model may be missing something entirely, possibly a second type of particle, or one that behaves in ways physicists have never observed.

Astrophysicist Priyamvada Natarajan and two Ph.D. students explain their findings: https://t.co/T4Q76LxQTf

[Yale University @Yale]

Researchers have been weighing the same population of Azara's owl monkeys in Argentina every year since 1999. What they found after 24 years of data runs counter to a longstanding principle in ecology: as temperatures rose, the monkeys got heavier, not lighter.

See what the study suggests about how animals respond to a warming climate: https://t.co/Jt9bPVFCxO

[Yale Alumni @YaleAlumni]

Yalies—thank you for two incredible weekends of reunion magic! Between your class events, lectures, social hangouts, and Handsome Dan selfies (and kisses), it was a pleasure celebrating with you.

We're already counting down to next year!

[Yale University @Yale]

Wildlife is watching us, and adapting its behavior in response.

A Yale-led study tracked millions of animal movements and found that simply being near people causes more than 65% of species to shift how they move and where they go. Even small changes in human activity, like the quieter streets during the COVID-19 pandemic, showed up in the data.

Explore the findings: https://t.co/eqMC1cgbMl

[Yale University @Yale]

Asuka Koda, a rising senior in Yale College, covers science and health for CNN, leads the Yale Scientific Magazine, and conducts cancer immunology research at Yale School of Medicine. She was recently named one of 55 Truman Scholars nationwide for her commitment to reforming how scientific knowledge reaches the public.

Read about her path and what she plans to do next: https://t.co/CmYM2OUcGh

[Yale University @Yale]

Yale Planetary Solutions will award more than $1.9 million in grants to 19 collaborative projects focused on climate, biodiversity, and related societal issues. The funded work brings together Yale faculty, postdocs, and students from across the university.

Learn more about this year’s grantees and the projects aimed at addressing some of the world’s biggest environmental challenges: https://t.co/W08EePOMOH

[Yale University @Yale]

What helped make CarMax successful? The systems behind the scenes.

When CarMax launched in 1991, bringing a big-box retail model to used-car sales was still a relatively new idea. In an interview, co-founder Austin Ligon ’80 M.B.A. reflects on the company’s growth and the operational strategies that helped power it: https://t.co/mRbNW5CVOx

[Yale University @Yale]

Yale’s home will always be New Haven, but its backyard is as big as America.

See how Yale’s students, faculty, alumni, and staff are committing themselves to a better future in all 50 states: https://t.co/x1CUlkWczO

[Yale University @Yale]

Decades after dorm life, love blossomed for these Yale couples.

For some Yale alumni, class reunions became more than a return to campus. They became the setting for new beginnings, where decades-old connections were revisited and, in some cases, transformed into lasting partnerships.

Read their stories in Yale Alumni Magazine: https://t.co/SDoRukbp9p

[Yale University @Yale]

Complexity in the brain may begin with surprisingly simple patterns.

Yale physicist Christopher Lynn studies how thousands of neurons work together to create complex systems. By zooming in on individual neurons, he found that these intricate cells may operate in simpler ways than previously understood, offering new insight into how larger neural systems function.

Learn how this research is reshaping our understanding of the brain: https://t.co/JK4wBnyGVi

[Yale University @Yale]

New research is offering a clearer picture of how COVID-19 may affect pregnancy.

A Yale study found that SARS-CoV-2 does not persist in the placenta during pregnancy, helping researchers better understand how the body responds to infection and what this could mean for long COVID.

Explore what the findings may mean for future research: https://t.co/DFDfFciP7g

[Yale University @Yale]

One week later, a few more moments from Yale’s 325th Commencement.

Check out Yale News’ campuswide roundup of coverage of Commencement festivities, including video, photos, and news and feature stories: https://t.co/n7ylvbQitU #Yale2026 🎓

[Yale University @Yale]

Cooking can be creative, collaborative, and environmentally conscious.

During a weeklong residency at Yale, chef Rodrigo Pacheco shared his approach to sustainable cuisine with students and members of the New Haven community, exploring how food and culinary practices can connect more closely with ecological values.

See how the residency brought together cuisine and sustainability: https://t.co/7CsuBPi2wB @rodrigopachecoE

[Yale University @Yale]

Landscapes can hold centuries of history.

In a recent Yale College course led by instructor Pauline Lin, students explored how parks, gardens, and waterfronts reveal changing relationships between people and the natural world across Chinese history.

Explore how the course brings cultural and environmental perspectives together: https://t.co/E1D00QWtUw

[Yale University @Yale]

Yale this week recognized Air Force, Naval, and Army ROTC graduates as they officially joined the ranks of the U.S. armed services.

During the annual commissioning ceremony in Battell Chapel, held following Commencement on Monday, cadets and midshipmen from Yale College’s Class of 2026, along with graduates from nearby colleges and universities, received their appointments as military officers.

Read more about the ceremony: https://t.co/TKOvkevNrK #Yale2026 🎓

[Yale School of Medicine @YaleMed]

Members of the MD #Classof2026 saw the culmination of all their hard work in Amistad Park Monday, as YSM's newest class of doctors officially received their diplomas. Thanks to @SketchyLearning co-founder @AndrewBergMD for delivering today's #commencement address, and #congratulations to our graduating MDs! We can't wait to see what you accomplish next.

[Yale School of Management @YaleSOM]

Congratulations to the Class of 2026! 🎓

📸: Tony Fiorini

[Yale University @Yale]

Dracula isn’t the only bloodsucker repelled by garlic.

Yale researchers have discovered that the aromatic vegetable works as de facto birth control for mosquitoes and other winged insects.

See how the insight could lead to more eco-friendly pest control methods: https://t.co/rxh34vE1S2

[Yale Alumni @YaleAlumni]

Congrats graduates, and welcome to the Yale alumni community! Wherever you go and whatever you do, we hope you'll stay in touch.

Find out more about the benefits of being an alum and some of the ways you can stay connected: https://t.co/0zu8p5J2J3

📸: Allie Barton

[Yale Law School @YaleLawSch]

A look back at Commencement 2025 as we count down to celebrating tomorrow with the Class of 2026!

📷 Mara Lavitt