Drains across the Iranian capital Tehran are continuing to explode after earlier Israeli and US strikes on oil depots and infrastructure. Medical experts are warning the toxic smoke and runoff has increased the risk of deadly illnesses, including cancer.

This area where IPM schools of Astronoly and Particle are located north of Tehran.

My heart is with Barus and Holley 🖤 As a physics graduate student the building was a second home to us #brownuniversity

A wildfire burning for more than a week in drought-stricken Iran has razed portions of the ancient Hyrcanian Forests, a UNESCO World Heritage site home to many endangered species.

#Iran > The Hyrcanian Forests, since 2019 a UNESCO World Natural Heritage site, has been affected by a major #wildfire in the Alit area of Marzanabad, Mazandaran Province. More than 400 first responders and five firefighting helicopters are engaged in firefighting efforts.

Iran battles fire in UNESCO-listed forest, gets Turkey's help reut.rs/44sSnZV

Cosmologists! We have a faculty job going here in Oxford - happy to answer questions. Brief version is that this remains a great & collaborative place to do science and the students are superb. 🔭 www.jobs.ac.uk/job/DOP628/a...

@bot.astronomy.blue signup

I’m doing a public talk with @perimeterinstitute.ca in Waterloo! www.eventbrite.ca/e/how-the-un... (Tickets are free but you have to be quick — Eventbrite ticket reservations open at 9am Eastern Sep 2, which is in… 5 minutes)

At least 62 Palestinians killed across enclave in Israeli attacks, as two more malnutrition deaths are recorded.

"Merger of two massive black holes is one for the record books" @jenlucpiquant.bsky.social reports on our LIGO @egovirgo.bsky.social KAGRA discovery of #GW231123 arstechnica.com/science/2025... 🔭🧪⚛️

Friends Branding together to check on expats' elderly parents in Tehran, doctors staying in dangerous places providing free care, folks in rural areas providing free housing, food, and car rides, these are Iranian stories that you won't hear in the msm. We are human too and deserve to live.

The White House has confirmed that “We” means the United States but won’t provide any other details.

Tehran, home to 10 million people, suffers from severe traffic congestion making a speedy evacuation impossible.

"Modeling Gravitational Wave Bias from 3D Power Spectra of Spectroscopic Surveys" is out!🔭 Led by Dorsa Sadat Hosseini and a great collaboration with Amir Dehghani, Leo Kim, Alex Krolewski, and Suvodip Mukherjee across different institutes. @jjlkim.bsky.social @perimeterinstitute.ca @uwaterloo.ca

Iran’s air defence batteries have been firing overnight in the capital Tehran to counter a fourth night of Israeli strikes. Iranian officials say Israeli attacks have killed more than 224 people, including 70 women and children.

My institute, Kavli-IPMU at the university of Tokyo is hiring early career researchers whose work has been disrupted due to difficult circumstances due to events happening at various places currently in the world. Please repost and encourage them to apply. 🙏🏻 www.ipmu.jp/en/job-oppor...

How did the universe begin? PI researcher Niayesh Afshordi unpacks the history of the Big Bang theory and what the evidence tells us about the universe’s beginnings: perimeterinstitute.ca/news/perimet...

Do jets really need two wings? Think of the budget cuts if they only had one! @ligo.org

NSF budget would close down one of LIGO's sites. This would be, to put it lightly, a catastrophe for gravitational wave astronomy. "In FY 2026 NSF will operate only one of the two sites and will support a reduced level for technology development." bsky.app/profile/hast...

@nafshordi.bsky.social and I had a blast talking about our new book The Battle of the Big Bang with the legendary @seanmcarroll.bsky.social . You can check it out here: www.youtube.com/watch?v=iG1I...

Thicket may go very fast, but you can also join the live stream 🙂 @nafshordi.bsky.social

My new book review is out! My goodness did this one take me on a journey… thanks for a great read @philhalper.bsky.social @nafshordi.bsky.social 🔭📖 physicsworld.com/a/beyond-the...

#BattleoftheBigBang is finally here! Take advantage of a 30% discount by using this discount code (UCPNEW) when ordering from: press.uchicago.edu/ucp/books/bo...

🚀 Paper Day! How Much NEC Breaking Can the Universe Endure? Quantum fields violate NEC. As an example of a semilocal quantum-motivated energy condition, check out the parameter space over which SNEC, is consistent with the recent results from #DESI. @perimeterinstitute.ca @desisurvey.bsky.social

Hello, London! I’m thrilled that I’ll be speaking at the iconic Royal Institution @ri-science.bsky.social on June 28th about #BattleoftheBigBang, which is also the topic of my upcoming book by @uchicagopress.bsky.social with @philhalper.bsky.social Book your tickets here: rigb.org/whats-on/bat...

سال نو مبارک و نوروزتان پیروز.‌ امیدوارم‌ آغاز بهار و سال جدید با همنوع دوستی، مهربانی و خردمندی بیشتر رقم‌ بخوره 🙂 🐣 🪻🌱 Happy Nowruz, May the new turn of earth around the sun brings us all more empathy for each other, kindness, and wisdom. #Nowruz @perimeterinstitute.ca

Thank you. We're strongest when we are united.

If you’ve been hoping origin of cosmos could be less dramatic than current affairs, here’s a rigorous work by Amir Dehghani, Jerome Quintin & me showing Cuscuton bounce has no strong coupling problems & is within observational non-Gaussianity bounds. #cosmology @perimeterinstitute.ca @uwaterloo.ca

After going quiet on bird flu, CDC scientists have published a report on its spread among veterinarians. The findings suggest a need for better surveillance.

This is the first time that the ring of light surrounding the centre of NGC 6505 is detected, thanks to Euclid’s high-resolution instruments. 🔭🧪 #cosmology

bispectrum/non-gaussianities calculations and Canadian prime minister in one frame 😎 #theoreticalphysics #canadastrong @perimeterinstitute.ca

The world’s biggest radio telescope is starting to take shape here in Australia and the SKA team is looking for folks to come join this exciting mega-project. Science jobs! 👇🏽

A thread on Felix Klein, Emmy Noether, and credit where credit is due. Felix Klein gave a lecture at the Mathematical Society of Göttingen #OTD in 1918. The title was “On Hilbert’s first note on the foundations of physics." 🧪 ⚛️ 👩‍🔬

Backyard woodpecker

2025 will be the year of the Black Hole! Watch Out! Another great video, courtesy of @philhalper.bsky.social, featuring yours truly, @ghazalgesh.bsky.social and others. youtu.be/o1A_H67XfzY?...

One of the most common celestial objects to be mistaken for a UFO is Venus. (More: www.popsci.com/science/ufo-...) (It is brighter than the brightest stars and never far from the horizon when visible, so people unfamiliar with the night sky can easily be thrown by it.)

The Bell Burnell Graduate Scholarship Fund applications are open! This provides funding for current/prospective PhD students from underrepresented groups in #Physics ⚛️ & Astronomy 🔭 🧪Application deadline is 20th Jan 2025. FAQs: www.iop.org/about/suppor... #WomenInSTEM: www.iop.org/about/suppor...

Curious if black holes are truly what they’re believed to be? This video is for you!

Whilst the public might be sure that black holes exist , physicists are starting to wonder if the images we have of them might be something else? But what else? In this short film leading physicists explain the possibilities and how to find them www.youtube.com/watch?v=X7mp...

"New Tales of Our Cosmic Origins" My interview with University of Waterloo Faculty of Science's Entangler about our upcoming book w/ @philhalper.bsky.social uwaterloo.ca/entangler/fa... @uofwaterloo.bsky.social @uchicagopress.bsky.social

Let me also advertise our work with @wkcosmo.bsky.social where we prove why the other alternatives come at a cost arxiv.org/abs/1107.1241

The Max Planck Institute for Astronomy Summer Internships are open for applications! This is an opportunity for bachelor and masters students 🤩 If you are interested in doing some exoplanets research, contact me! More info: www.mpia.de/en/careers/i... 🔭🪐⭐🧪👩‍🔬

Paper day 📣📣📣 “Complex Powerballs: Conformal Cores of Quantum Black Holes in Quadratic Gravity” arxiv.org/abs/2411.19311 We all know that Einstein showed spacetime has geometry, while Quantum Mechanics says that probability (amplitude) is complex. What if spacetime geometry is also complex? (1/3)

I am looking for a PhD student for the OCT 2025 intake to work on dynamical compactification of extra dimensions or on boson stars GW signatures! www.kcl.ac.uk/research/the...

So much to unpack here: from the history of science and the confirmation of Newtonian gravity and celestial mechanics, to the overlooked role of many scientists (some intentionally made-forgotten) who have shaped our scientific understanding today. #Gravity #scientist #HistoryOfScience

Now I can totally relate 😁