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Ghazal Geshnizjani

@ghazalgesh.bsky.social
293 followers 87 following 111 posts

Scientist, Physics, Mathematics ghazalgeshnizjani.wordpress.com The posts here are my personal views.

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Reposted by Ghazal Geshnizjani
Al Jazeera English @aljazeera.com · 09/03/2026
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.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 09/03/2026
This area where IPM schools of Astronoly and Particle are located north of Tehran.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 14/12/2025
My heart is with Barus and Holley 🖤 As a physics graduate student the building was a second home to us #brownuniversity
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Reposted by Ghazal Geshnizjani
The New York Times @nytimes.com · 23/11/2025
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.
nyti.ms
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.
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MiBaWi @mibawi.bsky.social · 21/11/2025
#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.
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Reposted by Ghazal Geshnizjani
Reuters @reuters.com · 22/11/2025
Iran battles fire in UNESCO-listed forest, gets Turkey's help reut.rs/44sSnZV
reut.rs
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.
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Reposted by Ghazal Geshnizjani
Chris Lintott @chrislintott.bsky.social · 14/10/2025
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...
jobs.ac.uk
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
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 12/09/2025
@bot.astronomy.blue signup
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Reposted by Ghazal Geshnizjani
Katie Mack @astrokatie.com · 02/09/2025
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)
eventbrite.ca
How the Universe Ends - Katie Mack (CIGI)
The Big Bang started the universe 13.8B years ago - but how might it end? Here's what modern astrophysics says about its ultimate fate.
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Reposted by Ghazal Geshnizjani
Al Jazeera English @aljazeera.com · 25/07/2025
At least 62 Palestinians killed across enclave in Israeli attacks, as two more malnutrition deaths are recorded.
bit.ly
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.
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LIGO Scientific Collaboration @ligo.org · 15/07/2025
"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... 🔭🧪⚛️
arstechnica.com
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.
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Reposted by Ghazal Geshnizjani
Zahra Fakhraai @zahrafakhraai.bsky.social · 19/06/2025
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.
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Yashar Ali 🐘 @yasharali.bsky.social · 17/06/2025
The White House has confirmed that “We” means the United States but won’t provide any other details.
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Reposted by Ghazal Geshnizjani
Al Jazeera English @aljazeera.com · 17/06/2025
Tehran, home to 10 million people, suffers from severe traffic congestion making a speedy evacuation impossible.
bit.ly
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.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 17/06/2025
"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
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Reposted by Ghazal Geshnizjani
Al Jazeera English @aljazeera.com · 16/06/2025
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.
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Maria @mmylova.bsky.social · 08/06/2025
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...
ipmu.jp
Special Postdoctoral Positions for displaced scientists (2025)
The Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), WPI at the University of Tokyo solicits applications for its special Postdoctoral Fellowship program.
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Reposted by Ghazal Geshnizjani
Perimeter Institute for Theoretical Physics @perimeterinstitute.bsky.social · 04/06/2025
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...
perimeterinstitute.ca
Perimeter researcher tells the real history of the Big Bang | PI News
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 31/05/2025
Do jets really need two wings? Think of the budget cuts if they only had one! @ligo.org
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Reposted by Ghazal Geshnizjani
Dan Garisto @dangaristo.bsky.social · 30/05/2025
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...
NSF LIGO plan
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Reposted by Ghazal Geshnizjani
philhalper.bsky.social @philhalper.bsky.social · 26/05/2025
@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...
youtube.com
Mindscape 316 | Niayesh Afshordi and Phil Halper on the Big Bang and Before
YouTube video by Sean Carroll
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 23/05/2025
Thicket may go very fast, but you can also join the live stream 🙂 @nafshordi.bsky.social
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Reposted by Ghazal Geshnizjani
Emma Chapman @dreochapman.bsky.social · 08/05/2025
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...
physicsworld.com
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
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Niayesh Afshordi @nafshordi.bsky.social · 02/05/2025
#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...
A picture of a hard copy of our book, “Battle of the Big Bang” on a coffee table
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 27/03/2025
🚀 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
SNEC consistentency with DESI
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Niayesh Afshordi @nafshordi.bsky.social · 25/03/2025
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...
rigb.org
Battle of the Big Bang
Astrophysicist Niayesh Afshordi explores the latest debates on the origin of our universe.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 20/03/2025
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
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Reposted by Ghazal Geshnizjani
Mark Carney @mark-carney.bsky.social · 09/03/2025
Thank you. We're strongest when we are united.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 05/03/2025
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
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NPR @npr.org · 13/02/2025
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.
npr.org
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.
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Reposted by Ghazal Geshnizjani
ESA Space Science @science.esa.int · 10/02/2025
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
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.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 02/02/2025
bispectrum/non-gaussianities calculations and Canadian prime minister in one frame 😎 #theoreticalphysics #canadastrong @perimeterinstitute.ca
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Reposted by Ghazal Geshnizjani
CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 23/01/2025
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! 👇🏽
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Reposted by Ghazal Geshnizjani
Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 22/01/2025
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." 🧪 ⚛️ 👩‍🔬
Black and white photo of Felix Klein. He wears a dark jacket, white shirt with a high collar, and a thin black bow tie. Klein has a neat, short beard and his hair is parted on the far right. He is looking just to the right of and slightly above the photographer, with a serious and thoughtful expression on his face.Black and white photo of Emmy Noether. She wears a white blouse with fine vertical stripes and puffy shoulders, and a light gray skirt fastened at the waist with a dark belt. There is a puffy black bow at her collar. Noether's dark hair is pulled back, and she is looking just down and to the right of the photographer. She is standing behind an ornate chair; only the back of the chair is visible in the photo.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 15/01/2025
www.linkedin.com/posts/ghazal...
linkedin.com
Ghazal Geshnizjani on LinkedIn: #battleofthebigbang #bigbang
Persian speaking community in Waterloo region don't miss out on this opportunity to hear about the fantastic tales of our cosmic origin and the…
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 12/01/2025
Backyard woodpecker
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Niayesh Afshordi @nafshordi.bsky.social · 04/01/2025
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?...
youtu.be
The future of black hole physics
YouTube video by Phil Halper (aka Skydivephil)
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Reposted by Ghazal Geshnizjani
philhalper.bsky.social @philhalper.bsky.social · 27/12/2024
www.youtube.com/watch?v=o1A_...
youtube.com
The future of black hole physics
YouTube video by Phil Halper (aka Skydivephil)
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Katie Mack @astrokatie.com · 15/12/2024
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.)
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Dr Gayathri Eknath @drgeoxymorons.bsky.social · 13/12/2024
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...
iop.org
Bell Burnell Graduate Scholarship Fund
Apply now to the innovative fund instigated by leading physicist Professor Dame Jocelyn Bell Burnell and the Institute of Physics to encourage greater diversity in physics.
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Niayesh Afshordi @nafshordi.bsky.social · 10/12/2024
Curious if black holes are truly what they’re believed to be? This video is for you!
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philhalper.bsky.social @philhalper.bsky.social · 09/12/2024
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...
youtube.com
5 Black Hole Alternatives & how to find them
YouTube video by Phil Halper (aka Skydivephil)
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Niayesh Afshordi @nafshordi.bsky.social · 09/12/2024
"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
uwaterloo.ca
New Tales of Our Cosmic Origins | The Entangler
The Entangler recently had the opportunity to talk with Niayesh Afshordi, author of the upcoming book Battle of the Big Bang, a compelling exploration of competing cosmological origin stories.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 06/12/2024
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
arxiv.org
General conditions for scale-invariant perturbations in an expanding universe
We investigate the general properties of expanding cosmological models which generate scale-invariant curvature perturbations in the presence of a variable speed of sound. We show that in an expanding...
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Reposted by Ghazal Geshnizjani
Beatriz Campos Estrada, PhD @exobeatriz.bsky.social · 05/12/2024
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... 🔭🪐⭐🧪👩‍🔬
mpia.de
Summer internships
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Niayesh Afshordi @nafshordi.bsky.social · 04/12/2024
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)
arxiv.org
Complex Powerballs: Conformal Cores of Quantum Black Holes in Quadratic Gravity
We explore the possibility that quadratic gravity, as a renormalizable theory, describes the interior of quantum black holes. We find new exact power-law solutions to pure quadratic gravity under sphe...
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Eugene Lim @tukohbin.bsky.social · 04/12/2024
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...
kcl.ac.uk
Theoretical Particle Physics & Cosmology
The research focus of the TPPC Group is on tests of new models of particle physics beyond the Standard Model, including supersymmetry, large extra dimensions and strings.
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 30/11/2024
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
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Ghazal Geshnizjani @ghazalgesh.bsky.social · 29/11/2024
Now I can totally relate 😁
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