Ghazal Geshnizjani

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

Fire Threatens Iran’s Ancient Forest, a World Heritage Site Iran has been battling its worst drought in more than six decades. A blaze in the north has now eaten through parts of the old treasure.

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 Iran has sought help to fight a devastating fire in UNESCO-listed forests in its north, with neighbouring Turkey sending firefighting planes, Iran's top environmental official said on Saturday.

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

Associate Professor of Cosmology at University of Oxford Recruiting now: Associate Professor of Cosmology on jobs.ac.uk. Click for details and explore more academic job opportunities on the top job board

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)

Death toll from starvation in Gaza rises to 115 as Israeli attacks continue At least 62 Palestinians killed across enclave in Israeli attacks, as two more malnutrition deaths are recorded.

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 The event resulted in a new black hole with a mass 225 times larger than our Sun.

"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.

Trump warns Tehran residents to ‘evacuate immediately’. But can they? Tehran, home to 10 million people, suffers from severe traffic congestion making a speedy evacuation impossible.

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...

Perimeter researcher tells the real history of the Big Bang | PI News

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...

Mindscape 316 | Niayesh Afshordi and Phil Halper on the Big Bang and Before YouTube video by Sean Carroll

@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

Beyond the Big Bang: reopening the doors on how it all began – Physics World Emma Chapman reviews Battle of the Big Bang: The New Tales of Our Cosmic Origins by Niayesh Afshordi and Phil Halper

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

Battle of the Big Bang Astrophysicist Niayesh Afshordi explores the latest debates on the origin of our universe.

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 delay, CDC releases data signaling bird flu spread undetected in cows and people 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.

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.

A thin ring of a perfect circular shape and a piercingly bright white disc in its middle are the protagonists of this image. They stand out against a uniformly coloured background of a hazy dark grey. The ring appears as if it was a faint brush stroke, where at four evenly spaced spots more pressure was applied on the brush. These stand out in the ring as four brighter and thicker spots. The white disc within the ring gives the impression of a gaping hole in the image, through its stark contrast to the dark background.

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