Karmela Padavic-Callaghan (they/them)
@kpc.bsky.social
1K followers 960 following 140 posts
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.
Posts Media Videos Starter Packs
Reposted by Karmela Padavic-Callaghan (they/them)
audreytruschke.bsky.social
A Rutgers professor has been forced to flee the country for his safety, after targeting by a far-right student group that was *checks notes* claiming they felt unsafe.

I'm horrified.
I'm angry.

A short 🧵 #AcademicFreedom #Rutgers #violence #antifa

www.theguardian.com/us-news/2025...
Rutgers professor moving to Europe after threats over antifa accusations
Mark Bray says threats intensified after a Turning Point USA petition accused him of promoting political violence
www.theguardian.com
Reposted by Karmela Padavic-Callaghan (they/them)
slooterman.bsky.social
Are rising prices and inflation eating into your or a loved one’s Social Security payments? Want to talk about it with a reporter for a news article? DM or email sluterman at 19thnews dot org.
Reposted by Karmela Padavic-Callaghan (they/them)
Reposted by Karmela Padavic-Callaghan (they/them)
restingdinoface.bsky.social
Getting off social in the sense of burrowing a few feet below the surface, exuding a mucus cocoon, and waiting for fairer conditions to return.
kpc.bsky.social
On my personal newsletter this week, I am writing about One Battle After Another and how Benicio del Toro's character is the one to pay attention to, the new Kathryn Bigelow film A House of Dynamite, and sketching out a reliable vegan banana muffin recipe ultracold.substack.com/p/mediadiet-...
Media/Diet (October '25)
One Battle After Another + A House of Dynamite + vegan banana muffins
ultracold.substack.com
Reposted by Karmela Padavic-Callaghan (they/them)
dlknowles.bsky.social
I visited the apartment building ICE raided on Tuesday today. Story to come, but you can walk right in. Half of the apartments have no doors on them. Children's stuff abandoned in some flats. *Citizen* residents told me they were arrested and held for hours in zipties. This is America
Reposted by Karmela Padavic-Callaghan (they/them)
mjflepage.bsky.social
A study suggests AI could help evade controls on synthesising bioweapons. Here's why this is like doing a fancy Mission Impossible-style bank raid when the vault door has been left open, the alarm is off and the guards are asleep 🧪

www.newscientist.com/article/2498...
Should we worry AI will create deadly bioweapons? Not yet, but one day
AI tools are being used to design proteins and even viruses, leading to fears these could eventually be used to evade bioweapon controls
www.newscientist.com
Reposted by Karmela Padavic-Callaghan (they/them)
mcnees.bsky.social
Yesterday’s #OTD *should* have been astrophysicist Dr. George Carruthers, born 1939. He developed a UV spectrograph (launched in 1970 on a sounding rocket) that confirmed the existence of interstellar hydrogen, and a similar device placed on the moon by Apollo 16. 🧪 ⚛️

Image: US Naval Research Lab
Dr. George Carothers working on a shiny gold and black apparatus — his UV spectrograph. He is a Black man of thin or medium build, wearing a white lab coat over a green button/down shirt. He has on white gloves, and he is examining his spectrograph.
kpc.bsky.social
November will be six months out from my book's publication date and I'm going to shift into being so deeply annoying you won't believe it
kpc.bsky.social
I’m reading an advance copy of a new pop science quantum book and in the first 100 pages it’s already twice claimed that quantum computers will solve climate change. If I weren’t reading for work, I’d rage quit right about now. We (science writers) gotta do better!
Reposted by Karmela Padavic-Callaghan (they/them)
dangaristo.bsky.social
The possibility of a shutdown has become routine in recent years (near misses in December and March). Now, the government has actually shut down, and the administration has threatened to use the opportunity for massive permanent layoffs.

Our story on the potential impacts for science:
This US government shutdown is different: what it means for science
President Trump’s budget office lays out guidelines for mass lay-offs across the federal government.
www.nature.com
Reposted by Karmela Padavic-Callaghan (they/them)
elisecutts.bsky.social
I've become such a grinch lol. As soon as I saw this, my "ITS NOT A BIOSIGNATURE" hackles went straight up 😅😂

This looks genuinely interesting, though. If it is a sign that there's active hydrothermalism on Enceladus then the lil snowball would be an even more exciting target for alien hunting.
science.esa.int
🆕 The discovery of new complex organic molecules at Saturn's #Enceladus enhances the likelihood that the moon is habitable 🪐

On Earth, these molecules are involved in chemical reaction chains that lead to the more complex molecules essential for life.

Read more 👉 www.esa.int/Science_Expl...
🔭 🧪 ☄️
Scientific illustration showing a cross-section of Saturn’s moon Enceladus. It features three labelled layers: An ice shell at the top, with visible cracks releasing jets of water vapour into space; an ocean in the middle, depicted as a large body of water beneath the ice; a rocky core at the bottom, shown emitting heat that may drive the jets. In the background, Saturn and its rings are visible in space.
Reposted by Karmela Padavic-Callaghan (they/them)
ohdearz.bsky.social
Ohio State just advised all staff and students not to attend the SACNAS (Society for the advancement of Chicanos and Native Americans in Science) annual meeting of 6000+ scientists -- which is in Columbus, OH this year! -- saying it may be exclusionary, even though it is open to all.
Reposted by Karmela Padavic-Callaghan (they/them)
dangaristo.bsky.social
NSF has a new banner. (Per contingency plan, 75% of staff are furloughed and most agency activities will stop.)
Due to a lapse in appropriations, NSF is closed. NSF will continue to accept proposals in accordance with published guidelines. Please continue to watch this site for changes to NSF's operating status, reopening guidance for employees, and if necessary, general instructions for recipients.
kpc.bsky.social
He was the first professional physicist I had ever met, as a teenager at a science festival in Croatia. I asked him an overly wordy question in broken English and he was really kind about it. It felt like a huge deal at the time.
telescoper.bsky.social
R.I.P. George F. Smoot (1945-2025)

We will no doubt read many official obituaries in days to come, but all I can say is that he was a character, a very original thinker, a fine scientist, and a very nice man. Along with many others, I will miss him enormously.
R.I.P. George F. Smoot (1945-2025)
We will no doubt read many official obituaries in days to come, but all I can say is that he was a character, a very original thinker, a fine scientist, and a very nice man. Along with many others, I will miss him enormously.
telescoper.blog
Reposted by Karmela Padavic-Callaghan (they/them)
dangaristo.bsky.social
A rather grim update from Columbia from Peter Woit:

"Once you get on campus, the place is as peaceful and beautiful as always. The vibe is not East Berlin but Vichy-on-Hudson. Lots of security people around."
www.math.columbia.edu/~woit/wordpr...
The fall semester is now under way at Columbia, and in many ways things are normal: enrollments are as usual or higher, foreign students have mostly gotten visas and are on campus. There are some new things though which are very different.

The temporary card tables and tents housing the security at the gates have been replaced by permanent guard houses. The lockdown is no longer temporary but permanent. People have started referring to the main gate at 116th and Broadway as “Checkpoint Charlie”. Throughout much of the day people are lined up waiting to show their papers (a QR code). There’s additional security at most of the building entrances.

Once you get on campus, the place is as peaceful and beautiful as always. The vibe is not East Berlin but Vichy-on-Hudson. Lots of security people around. The Columbia administration had the flags lowered to honor Charlie Kirk. The Barnard president has a piece in the New York Times arguing that colleges need to host more speakers like Charlie Kirk.

The large video screens on campus intended for announcements often urge one to “Report a Concern” in order to “Help Prevent Discrimination and Harassment”. The screen has a large QR code which takes you to a page where you can report students for “behavioral misconduct”, specifically for “violations stemming from demonstrations and protests”. You can also report anyone for “Discrimination and Discriminatory Harassment”. These reports go to the “Office of Institutional Equity” which opens investigations. What I’ve heard from people this has happened to is: you don’t get told who reported you, have to hire a lawyer and will be under investigation for months, unable to tell anyone what is going on.
Reposted by Karmela Padavic-Callaghan (they/them)
erininthemorning.com
I just got a VERY interesting email that allies in congress were upset that so many of my readers were calling about the anti-trans provisions. I'm here to say: good. I won't let them throw our rights under the bus by cover of night.

All's that to say, keep up the calls. They're hearing you.
erininthemorning.com
1. It's shutdown day, and anti-trans provisions are on the line... either today, or in a few more weeks if a clean continuing resolution passes.

Trump posted a video this morning blaming a shutdown on trans people and immigrants.

Here is your shutdown guide.

Subscribe to support our journalism.
Shutdown Day Guide For LGBTQ+ People: "Continuing Resolutions" And New Anti-Trans Posts From The White House
Shutdown day is here, and there has been a lot of competing coverage on Republican priorities, Democrat's demands, and what shutdown politics means for LGBTQ+ people in America.
www.erininthemorning.com
Reposted by Karmela Padavic-Callaghan (they/them)
Reposted by Karmela Padavic-Callaghan (they/them)
nkalamb.bsky.social
Cornell is cancelling a distinguished professor's classes on Gaza and suspending him because of the complaints of a student who previously served in Israel's military surveillance agency and was literally recording the comments of other students in class and deliberately derailing discussion.
Early last semester, Droubi said, students began approaching Cheyfitz with complaints that a graduate student in the “Gaza, Indigeneity, Resistance” class appeared to be recording them, possibly to “gather their names and comments” and intimidate them. “We believe that a student came to the course for the sole reason of surveilling and potentially harming students in the class,” Droubi said. “That ended up proving itself to be true because multiple students came forward and shared their concerns with Professor Cheyfitz.” Cheyfitz said one Palestinian student quit the class after telling him she felt upset and frightened.

Current Issue
Cover of October 2025 Issue
October 2025 Issue
According to Cheyfitz, the graduate student often steered conversations away from the assigned readings—which at that point mostly focused on definitions of genocide and international law on Indigenous rights—to defend Israel’s conduct in the war in Gaza and argue with others in the class. “He clearly had not done the readings,” Cheyfitz said. “It was disruptive.”

Cheyfitz said he met with the graduate student in late January and spoke to him about concerns from his classmates. During the conversation, he asked the graduate student to drop the course, and by the next class, he did, Cheyfitz said. The graduate student, Oren Renard, a PhD candidate in computer science whose identity was confirmed by other students in the class, previously served in Israel’s elite military surveillance agency, Unit 8200, according to his LinkedIn profile.
Reposted by Karmela Padavic-Callaghan (they/them)
erininthemorning.com
7. The silence over a male shooter decked out in Trump gear and camo, paired with the media frenzy that erupts when a shooter is falsely linked to trans people, is a pattern. For years, the right has refused to reckon with the consequences of its own policies on guns, violence, and mental health.
Reposted by Karmela Padavic-Callaghan (they/them)
kendrawrites.com
He also gutted the VA of at least 150 psychologists and 500 social workers. I'm sure they weren't doing anything important.
Reposted by Karmela Padavic-Callaghan (they/them)
vickyacab.bsky.social
When we talk about fundraising for people in Gaza it is about survival, it is about getting out of the worst circumstances. We rarely discuss their dreams, hope, for rebuilding? What lives will be lived if the bombs were to stop falling tomorrow? Alaa is asking for support for her future
Your help are an investment in rebuild a woman and an architect
My name is Alaa, and I hold a Master’s degree in Architecture.
chuffed.org
Reposted by Karmela Padavic-Callaghan (they/them)