Karmela Padavic-Callaghan (they/them)
@kpc.bsky.social
Physics Reporter at New Scientist. Author of ENTANGLED STATES, forthcoming from Beacon Press in May 2026. Former teacher. Vegan baker. Aspiring gym rat. Croatian in Queens. Queer.
Reposted by Karmela Padavic-Callaghan (they/them)
this is amazing news - the HPV vaccine promises to eliminate cervical cancer in countries where uptake is high.
November 26, 2025 at 6:57 PM
this is amazing news - the HPV vaccine promises to eliminate cervical cancer in countries where uptake is high.
Reposted by Karmela Padavic-Callaghan (they/them)
Karmela's ability to weave threads from physics, culture, and society together into original insights always astounds me. Looking forward to this.
Pre-orders make a huge difference for first time authors, please consider pre-ordering Entangled States here: www.penguinrandomhouse.com/books/804548...
Entangled States by Karmela Padavic-Callaghan: 9780807016985 | PenguinRandomHouse.com: Books
A young queer millennial physicist unveils some of the most mind-bending physics concepts in the universe—and uses them to illuminate their own fascinating life story “I see physics everywhere,”...
www.penguinrandomhouse.com
November 24, 2025 at 4:17 PM
Karmela's ability to weave threads from physics, culture, and society together into original insights always astounds me. Looking forward to this.
In my personal newsletter today I reveal the cover of my book, write about its backstory and what the book's mission is, and it's now available to pre-order! ultracold.substack.com/p/entangled-...
Entangled States
On writing my memoir, now available for pre-order
ultracold.substack.com
November 24, 2025 at 1:38 PM
In my personal newsletter today I reveal the cover of my book, write about its backstory and what the book's mission is, and it's now available to pre-order! ultracold.substack.com/p/entangled-...
Reposted by Karmela Padavic-Callaghan (they/them)
Keep this in mind when people claim cars mean business — closing Central #Madrid to cars over holidays resulted in a 9.5% boost in retail spending on its main shopping street: STUDY.
There was also a 71% drop in air pollution.
Via @carltonreid.com in @forbes.com. #citymakingmath #citiesforpeople
There was also a 71% drop in air pollution.
Via @carltonreid.com in @forbes.com. #citymakingmath #citiesforpeople
Closing Central Madrid To Cars Resulted In 9.5% Boost To Retail Spending, Finds Bank Analysis
City of Madrid significantly boosted the takings of its shops and restaurants last Christmas by banning cars from the CBD, finds an analysis by Spain's second largest bank.
www.forbes.com
November 20, 2025 at 6:21 AM
Keep this in mind when people claim cars mean business — closing Central #Madrid to cars over holidays resulted in a 9.5% boost in retail spending on its main shopping street: STUDY.
There was also a 71% drop in air pollution.
Via @carltonreid.com in @forbes.com. #citymakingmath #citiesforpeople
There was also a 71% drop in air pollution.
Via @carltonreid.com in @forbes.com. #citymakingmath #citiesforpeople
Reposted by Karmela Padavic-Callaghan (they/them)
Just edited this fantastic feature by @elisecutts.bsky.social: quasicrystals are turning up in meteorites, lightning strikes and even the aftermath of the Trinity test ⚛️
A wild detective story about forbidden symmetries hiding in extreme places
www.newscientist.com/article/2503...
A wild detective story about forbidden symmetries hiding in extreme places
www.newscientist.com/article/2503...
Why quasicrystals shouldn’t exist but are turning up in strange places
Matter with “forbidden” symmetries was once thought to be confined to lab experiments, but is now being found in some of the world’s most extreme environments
www.newscientist.com
November 19, 2025 at 5:38 PM
Just edited this fantastic feature by @elisecutts.bsky.social: quasicrystals are turning up in meteorites, lightning strikes and even the aftermath of the Trinity test ⚛️
A wild detective story about forbidden symmetries hiding in extreme places
www.newscientist.com/article/2503...
A wild detective story about forbidden symmetries hiding in extreme places
www.newscientist.com/article/2503...
Reposted by Karmela Padavic-Callaghan (they/them)
Just want to emphasize here that this is an image of an INTERSTELLAR COMET taken by a camera orbiting MARS. Space is so cool!
NASA's pix of the interstellar comet 3I/ATLAS are now up science.nasa.gov/solar-system...
This is the HiRISE/MRO image ⬇️
This is the HiRISE/MRO image ⬇️
November 19, 2025 at 8:30 PM
Just want to emphasize here that this is an image of an INTERSTELLAR COMET taken by a camera orbiting MARS. Space is so cool!
Reposted by Karmela Padavic-Callaghan (they/them)
Join us at CU Denver Biology! We have an open search for an assistant professor in cell and molecular biology to support our research and teaching mission. cu.taleo.net/careersectio...
November 17, 2025 at 9:36 PM
Join us at CU Denver Biology! We have an open search for an assistant professor in cell and molecular biology to support our research and teaching mission. cu.taleo.net/careersectio...
In my personal newsletter this week, I reflect on a lecture on queering design and what it may have to do with my work as a science writer ultracold.substack.com/p/redesign-y...
Redesign Your World
Can I write in service of remaking the reader's world?
ultracold.substack.com
November 18, 2025 at 3:41 PM
In my personal newsletter this week, I reflect on a lecture on queering design and what it may have to do with my work as a science writer ultracold.substack.com/p/redesign-y...
Reposted by Karmela Padavic-Callaghan (they/them)
Thrilled to announce publication of the crystallography children’s book illustrated by undergraduate Justine Wong!
You can buy it here for $15: meitneriumpress.com
50% of profits will support undergrad education at the Cal Poly Pomona Crystallography Co-op.
#chemsky #chemchat
You can buy it here for $15: meitneriumpress.com
50% of profits will support undergrad education at the Cal Poly Pomona Crystallography Co-op.
#chemsky #chemchat
November 17, 2025 at 4:26 PM
Thrilled to announce publication of the crystallography children’s book illustrated by undergraduate Justine Wong!
You can buy it here for $15: meitneriumpress.com
50% of profits will support undergrad education at the Cal Poly Pomona Crystallography Co-op.
#chemsky #chemchat
You can buy it here for $15: meitneriumpress.com
50% of profits will support undergrad education at the Cal Poly Pomona Crystallography Co-op.
#chemsky #chemchat
In my latest quantum column for New Scientist I was delighted to read and reflect on a book about women in the history of quantum physics who may not have been paradigm-shifting heroes but still an integral part of how the field became established and successful www.newscientist.com/article/2504...
The forgotten women of quantum physics
Physics has a reputation for being dominated by men, especially a century ago, as quantum physics was just being invented – but there have been so many women who helped shaped the field since its ince...
www.newscientist.com
November 17, 2025 at 2:38 PM
In my latest quantum column for New Scientist I was delighted to read and reflect on a book about women in the history of quantum physics who may not have been paradigm-shifting heroes but still an integral part of how the field became established and successful www.newscientist.com/article/2504...
Reposted by Karmela Padavic-Callaghan (they/them)
“Hitler: Blueprint of a Dictator” - my interview with Turi King here: www.youtube.com/watch?v=5XXB...
November 17, 2025 at 11:51 AM
“Hitler: Blueprint of a Dictator” - my interview with Turi King here: www.youtube.com/watch?v=5XXB...
Reposted by Karmela Padavic-Callaghan (they/them)
Are you a science writer who is (or was, or wants to be) an international student and are you interested in joining an online community of science writers for skills development, networking, and support? Consider applying to join our International Student Slack. It’s free! 🧪
International Students Slack Community - The Open Notebook
The Open Notebook's International Students Slack community is for science writers who are current, past, or aspiring international students to share information and advice about university application...
www.theopennotebook.com
November 14, 2025 at 11:01 PM
Are you a science writer who is (or was, or wants to be) an international student and are you interested in joining an online community of science writers for skills development, networking, and support? Consider applying to join our International Student Slack. It’s free! 🧪
Reposted by Karmela Padavic-Callaghan (they/them)
![4-panel vertical comic. (1) 100 Years Ago [two people standing next to bicycle with small car nearby] PERSON 1: It’s too dangerous riding a bike with these cars around. I should get a car, too. (2) 50 Years Ago [two people between smaller car and bigger car] PERSON 2 with short hair: Small cars are less safe in collisions with larger vehicles, so I should get a bigger one. (3) Today [two people between big car and even bigger car] PERSON 1: Everyone has huge SUVs now. If I don’t get the biggest one, I’m putting my family at risk. (4) Soon [two people next to large armored car with spiked clubs attached] PERSON 2: If I don’t install more whirling spike clubs, I’ll be destroyed by all the other drivers who...](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreiby6can6k76yzfmv2czxs4pu2l7zie7bqbrpswi7h3ifmiadkuqvu@jpeg)
Reposted by Karmela Padavic-Callaghan (they/them)
A new #letter from Rep. Zoe Lofgren (D-CA), the ranking Democrat on the Committee on #Science, #Space, and #Technology, demands #NASA stop any closures of the #Goddard #spaceflight Center in #Maryland. The letter references our own Space.com #investigation done by spaceflight #writer @joshdinner.bky
November 11, 2025 at 9:01 PM
A new #letter from Rep. Zoe Lofgren (D-CA), the ranking Democrat on the Committee on #Science, #Space, and #Technology, demands #NASA stop any closures of the #Goddard #spaceflight Center in #Maryland. The letter references our own Space.com #investigation done by spaceflight #writer @joshdinner.bky
Reposted by Karmela Padavic-Callaghan (they/them)
Happy There Is A Circulatory System Walking Through The Kitchen Day to all who celebrate.
November 10, 2025 at 10:54 AM
Happy There Is A Circulatory System Walking Through The Kitchen Day to all who celebrate.
Reposted by Karmela Padavic-Callaghan (they/them)
It’s almost as if the narratives we are constantly fed about the humanities and fine arts aren’t true 🤷🏻♂️
#SarcasmAlarm
#SarcasmAlarm
Arts and culture attendance in Colorado far outpaces attendance of Rockies, Broncos, Nuggets, Avalanche and Rapids events.
Colorado’s cultural sector is so successful, it attracts 3 times more attendees than pro sports teams combined
Arts and culture attendance in Colorado far outpaces attendance of Rockies, Broncos, Nuggets, Avalanche and Rapids events.
www.cpr.org
November 6, 2025 at 9:25 PM
It’s almost as if the narratives we are constantly fed about the humanities and fine arts aren’t true 🤷🏻♂️
#SarcasmAlarm
#SarcasmAlarm
Reposted by Karmela Padavic-Callaghan (they/them)
Beshear: Let me be clear. The president has both the funding and the authority to fund snap during a shutdown. In fact, every other president in every other shutdown has done so. People going hungry in this instance is a choice that this president has made.
November 5, 2025 at 4:44 PM
Beshear: Let me be clear. The president has both the funding and the authority to fund snap during a shutdown. In fact, every other president in every other shutdown has done so. People going hungry in this instance is a choice that this president has made.
I was at a drone metal show when the NYC election was called and briefly felt like I'd left my body. Mamdani is my age, another immigrant, someone who actually likes New York, a person that feels familiar and attuned to the greatness + promise of our city. Folks turning out for him is so hopeful!
November 5, 2025 at 1:38 PM
I was at a drone metal show when the NYC election was called and briefly felt like I'd left my body. Mamdani is my age, another immigrant, someone who actually likes New York, a person that feels familiar and attuned to the greatness + promise of our city. Folks turning out for him is so hopeful!
Reposted by Karmela Padavic-Callaghan (they/them)
i love new york city. many people are weird about it but it’s a special place. and i’m very relieved that we did not allow a politics of despair to get a foothold
November 5, 2025 at 3:47 AM
i love new york city. many people are weird about it but it’s a special place. and i’m very relieved that we did not allow a politics of despair to get a foothold
Reposted by Karmela Padavic-Callaghan (they/them)
The biggest difference by far watching the various campaigns as a New Yorker and all of the messaging we were targeted with I think is an important takeaway for the whole country:
Cuomo’s entire message was threats and fear and cynicism.
Mamdani’s entire message was lightness and joy and hope.
Cuomo’s entire message was threats and fear and cynicism.
Mamdani’s entire message was lightness and joy and hope.
November 5, 2025 at 3:16 AM
The biggest difference by far watching the various campaigns as a New Yorker and all of the messaging we were targeted with I think is an important takeaway for the whole country:
Cuomo’s entire message was threats and fear and cynicism.
Mamdani’s entire message was lightness and joy and hope.
Cuomo’s entire message was threats and fear and cynicism.
Mamdani’s entire message was lightness and joy and hope.
Reposted by Karmela Padavic-Callaghan (they/them)
Earle-Sears ran what felt like 12 billion ads about how much she hated trans kids and I didn’t hear a single pundit say she should stick to real issues that affect real people.
WASHINGTON (AP) — Democrat Abigail Spanberger wins Virginia governor’s race.
November 5, 2025 at 1:12 AM
Earle-Sears ran what felt like 12 billion ads about how much she hated trans kids and I didn’t hear a single pundit say she should stick to real issues that affect real people.
Reposted by Karmela Padavic-Callaghan (they/them)
if you want to know what happened to Teen Vogue yesterday, my work wife @allegrak.bsky.social — who ran our politics section for 6 years until this past June — said it all in this.
can't even pull out a favorite part til I sign my separation letter lol, just read the whole thing.
can't even pull out a favorite part til I sign my separation letter lol, just read the whole thing.
What We Lost When Condé Nast Unceremoniously Shuttered Teen Vogue
This article is part of TPM Cafe, TPM’s home for opinion and news...
talkingpointsmemo.com
November 4, 2025 at 5:14 PM
if you want to know what happened to Teen Vogue yesterday, my work wife @allegrak.bsky.social — who ran our politics section for 6 years until this past June — said it all in this.
can't even pull out a favorite part til I sign my separation letter lol, just read the whole thing.
can't even pull out a favorite part til I sign my separation letter lol, just read the whole thing.
Reposted by Karmela Padavic-Callaghan (they/them)
Senior Social Media Manager
www.sciencefriday.com
November 4, 2025 at 10:24 PM
In my personal newsletter this week I think back on a period in my teens when I was very religious and how that may have influenced my view of science later ultracold.substack.com/p/the-view-f...
The View From Nowhere
Has my religious youth helped me embrace science later on?
ultracold.substack.com
November 3, 2025 at 2:59 PM
In my personal newsletter this week I think back on a period in my teens when I was very religious and how that may have influenced my view of science later ultracold.substack.com/p/the-view-f...