"Last year, the US National Academies of Sciences, Engineering, and Medicine published its long-awaited report on the environmental impacts of nuclear war. The last time it did such a comprehensive study was in…1985." Important @thebulletin.org series kicks off with intro by @francoisdm.bsky.social

The risk of hantavirus for the vast majority of the world is extremely low. But it's serving as a warning sign of how poorly equipped the US is for outbreaks -- which is worrying, given predictions of another pandemic within decades. My latest: www.theguardian.com/science/2026...

How does China expand its nuclear arsenal while posing as a champion of disarmament? At the 2026 NPT Review Conference, Beijing is deploying a highly effective diplomatic shield: the Non-Aligned Movement (NAM). 1/6 🧵

Breaking News: Gov. Kathy Hochul announced a state budget deal that included funding to expand child care and a tax on multimillion-dollar second homes in New York City.

It's a great gig. If you're sophisticated journalist, you should at least take a look.

Greetings all. I'm looking for a podcast producer to help do a (much) more regular BLOOD IN THE MACHINE show. I thought I'd start by reaching out here, and to the broader BITM community. If this sounds like it's up your alley, details are in the link below:

"In addition to Iran, much more cyber-capable adversaries, namely China and Russia, are also likely looking to take advantage of the current moment," write Alex Noyes @alexhnoyes.bsky.social and Mike Nelson.

My big takeaway from reporting this story is that it's not JUST about the Forest Service. The closure of these stations threatens to upend a delicate system of mutually beneficial collaboration and resource sharing, and the impacts will ripple out far beyond the Forest Service itself.

The Andoya rocket launch incident is an important reminder of the value of pre-launch notifications, which is especially salient now that New START has expired, Jamie Withorne (@jamiewithorne.bsky.social) and Raven Witherspoon write in @thebulletin.org. #NewSTART #nuclearweapons #nukesky

"Iran’s recent hybrid attacks in the United States and Middle East should serve as a warning for how modern critical infrastructure actually fails..." alexhnoyes.bsky.social and Mike Nelson write in a piece for @thebulletin.org.

What a great photo just added on the NASA Johnson Flickr page www.flickr.com/photos/nasa2...

Splashdown! Vehicle is stable and upright. “A perfect bulls-eye splash for Integrity and its four astronauts!” #Artemis

If a tornado were about to hit your house, what would you do? Most Americans have at least 15 to 20 minutes to decide before impact, thanks to technology that enables the National Weather Service to issue advance warnings, writes Ema West. But what if you had no notice that a tornado was coming?

My latest in @thebulletin.org explores Iran's use of asymmetric warfare and disruptive technologies to counter a conventionally superior United States. thebulletin.org/2026/04/a-co...

"Thus far, Iran's warfare has to some degree degraded American and Israeli capabilities, increased pressure on Washington, and hampered the global economy [...] But Tehran's strategy has serious limits," writes Spenser A. Warren @spenserawarren.bsky.social.

President Trump's latest ultimatum, promising massive infrastructure strikes tonight if Tehran does not make a deal amenable to Washington, confirms that the international community may face a stark, kinetic escalation in the war, Ali Alkis and Ludovica Castelli write. #Iran #Bushehr #nukesky

"For Iran—in overall military terms far weaker than the United States—an asymmetry strategy attempts to counter expensive, often exquisite US capabilities with cheaper, lower-tech weapons and tactics designed to target critical American vulnerabilities," writes @spenserawarren.bsky.social.

NASA just dropped this image of Artemis II astronaut Christina Koch looking back at us. The first woman to ever see our planet in its entirety. I’m not crying you’re crying 🥹🔭🧪 📸: NASA

If anyone on here works at one of the 57 forest service research stations that are going to be closed and you want to tell me about your work there and why it's important, reach out: [email protected]

Arthur Holland Michel @writearthur.bsky.social writes that to better define the role of people in the usage of autonomous weapons, leaders need to change the way they talk about them.

"...if leaders want to preserve humanity in warfare, they need a better term [than meaningful human control”]—one that activates a vision of human control grounded in deliberate, conscious judgment. How about “mindful”?" writes @writearthur.bsky.social in a piece for @thebulletin.org.

BREAKING: NASA launches Artemis II astronauts to the moon on humanity's first lunar voyage in 53 years.

I am extensively quoted in this @cnn.com story about whether the Trump administration understands what "enriched" uranium means. Thanks, Harmeet Kaur.

With tactics ranging from choking off trade in drug ingredients in and around the Strait of Hormuz to launching a cyber attack on a company making systems for ambulances, Iran and its allies are exposing how vulnerable the US health care system is.

Nordic countries have generally welcomed France's proposed new concept of ‘forward deterrence.’ They appear willing to participate in joint nuclear exercises, potentially allowing French nuclear weapons on their territories. (1/4) #nuclearweapons #deterrence #nukesky

For better or worse, I dug into that paper that claimed to upend everything we know about the oceans taking up most of the heat from global warming. It's a perfect example of how AI makes it easy to produce science-y papers that amount to climate disinformation.

"Countries need to clarify terminology surrounding lethal drones, update end-use and end-user risk assessment procedures to prevent their misuse, and recommit to arms trade transparency before these systems spread faster than the rules meant to govern them," writes Dominika Kunertova.

NEW: Fossil fuel pollution and other toxic chemicals from the war in Iran will spread across the region and last for decades just as smoke from burning oil wells went as far as the Himalayas following the Gulf War 35 years ago FREE read on @bloomberg.com www.bloomberg.com/news/feature...

"The war has highlighted the vulnerability of relying on gas and oil exports from a conflict-prone part of the world. It will further compel leaders to invest in new sources of energy including renewables and nuclear power," writes @rb312.bsky.social in a new piece for @thebulletin.org.

"Moltbook is part of a new class of platforms quietly emerging at the boundary between social media and autonomous systems. It is a useful case study for this category, not because any single site is uniquely dangerous, but because the architectural idea is," writes Roman V. Yampolskiy.

"It’s easy to see how an AI system might have had access to old intel and new intel and failed to give precedence to the new information. This is especially true if the old intel was more represented in the AI training data set...," writes @garymarcus.bsky.social of the strike on a school in Iran.

🚨 JUST IN: I wrote about Trump's self-induced dilemma of sending US troops to seize or destroy Iran's highly enriched uranium. #Iran #Isfahan #uranium #Trump #nuclearweapons #nukesky @thebulletin.org

“...in conflicts, the capacity to act with AI-enabled tactical and operational speed should not be confused for solid strategy and clear political goals,” writes @ijreynolds.bsky.social in a piece for @thebulletin.org on how the use AI in the military raises fundamental questions.

Footage published by Iranian media today shows damage to Chehel Sotoon, a 17th century, Safavid-era landmark palace and garden located in the historic centre of Isfahan, after air strikes in its vicinity. The Persian garden that surrounds the palace is a UNESCO World Heritage Site.

The United States and Israel have launched thousands of missiles targeting Iran's government and military. Iran's counterattacks have struck Israel and other US-allied countries. Bulletin editors compiled clips shared by those experiencing the escalating war firsthand.

If you want to hear and feel some of what's going on in the Middle East, this is a place to start. A pretty alarming place. thebulletin.org/2026/03/war-...

To strike 1,000 targets in 24 hours in Iran, the U.S. military leveraged the most advanced AI it’s ever used in warfare. Anthropic’s Claude partnered with the military’s Maven Smart System, suggesting targets and issuing precise location coordinates. https://wapo.st/46BFe1T

Unfortunately this article that @saragoud.bsky.social and I wrote last year is newly relevant again. War sucks. It's bad for people, bad for the environment, bad for the climate. “That’s why anyone who thinks about the environment or cares about the environment should also care about peace.”

It's been a journey of nearly 3 years, but I'm very excited to announce the CNTR AISLE Portal! 🚀 cntr-aisle.org It’s a new way to review and evaluate the 1,000+ AI bills introduced in the U.S. over the last three years. Check out the Bill Library and our Profiles#AIPolicy #OpenData

Amazon data centers are on fire after Iranian missile strikes on Dubai www.404media.co/amazon-data-...

⚠️ Update: #Iran has now been cut off from the world for 36 hours with metrics showing connectivity at 1% of ordinary levels. The internet blackout imposed on Saturday morning continues to limit Iranians' access to information as the war with the US and Israel widens regionally.

Additionally, I want to speak directly to Iranian New Yorkers: you are part of the fabric of this city — you are our neighbors, small business owners, students, artists, workers, and community leaders. You will be safe here.

BREAKING: Khamenei is dead. www.reuters.com/world/iran-c...

⚠️ Confirmed: Network data show #Iran is now in the midst of a near-total internet blackout with national connectivity at 4% or ordinary levels. The incident comes amid US and Israeli combat operations and matches measures used during last year's war with Israel.

Anthropic CEO Dario Amodei said Thursday the artificial intelligence company “cannot in good conscience accede” to the Pentagon’s demands to allow wider use of its technology.

"Generative AI is not remotely reliable enough to make life or death decisions... But unless Anthropic successfully stares down the Department of War, generative AI, as “jagged” as it is, will likely soon be used in exactly that way." @garymarcus.bsky.social

"The new waterwheel they built to power the loom made the river undrinkable, and when the boss cut my hours in half, I couldn’t buy food anymore, which really made the whole rickets situation get out of hand. But that’s exactly the sort of time you need a laugh, right?"

I regularly see people wondering how it's possible that there are so many musicians and writers and film makers and artists from a tiny nation like Iceland. And the answer is really simple: State funding for art education and artists. I literally get a salary from the government to write books.

🚨 JUST IN: Frmr European Commission President José Manuel Barroso tells @thebulletin.org that Germany and France must work out their differences over nuclear weapons to strengthen Europe's security. I report from Munich. #MSC2026 @hfayet.bsky.social @tobiasbunde.bsky.social @munsecconf.bsky.social

Western economies have become dependent on data and energy flow along the seafloor; Russia and China are weaponizing that dependency. Read more from Bruce D. Jones of @brookings.edu's Talbott Center for Security, Strategy, and Technology. ⬇️