Bulletin of the Atomic Scientists

At its foundation, the Bulletin is a media entity that offers a free-to-access website and publishes a magazine every two months. However, we are much more than just that. Our website, the renowned Doomsday Clock, and our regular events aim to promote practical solutions during a time when technology is evolving faster than our ability to manage it. The Bulletin concentrates on three key areas: nuclear threats, climate change, and disruptive technologies. The common thread among these subjects is our belief that since humans have created these challenges, we also have the power to control them. The Bulletin operates as an independent, nonprofit 501(c)(3) organization. We bring together the most knowledgeable and influential experts on human-made dangers and share their innovative ideas with a worldwide audience. We engage in thoughtful discussions and are unafraid to confront unsettling truths.

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The 15-minute interview: Ambassador Harold Agyeman, chair of the third preparatory committee for the NPT Review Conference

15 hours ago | thebulletin.org | John Mecklin

Even as President Trump’s tariffs, deportations, and insults occupy news headlines, nuclear weapons have gained a measure of public attention of late. The United States and Iran have begun new talks about the Iranian nuclear program. And the United States and Russia continue to circle one another, negotiating—so far inconclusively—about an end to the war in Ukraine and a revival of arms control talks in advance of next year’s expiration of New START.
A letter to the president: Revoking visas of international students makes America smaller, not stronger

1 day ago | thebulletin.org | John Mecklin

Archway signage for the University of Chicago's 519th Convocation Saturday, June 14, 2014, on the Main Quadrangle of campus. (Robert Kozloff/The University of Chicago) Editor’s note: This open letter was originally posted on LinkedIn. Misho Ceko is a member of the Governing Board of the Bulletin of the Atomic ScientistsMy name is Misho Ceko. I’m the son of Bosnian immigrants who came to the South Side of Chicago chasing something simple and beautiful—a future for their kids.
Behind the US-Iran talks: five points of convergence between Trump and Khamenei

1 week ago | thebulletin.org | Seyed Hossein Mousavian |John Mecklin

The ongoing nuclear negotiations between Iran and the United States have taken an unexpected turn, with recent developments in Muscat, Oman shedding light on the potential for a breakthrough. In a statement on April 12, White House described the talks as very positive and constructive. “As the first meeting, it was a constructive meeting held in a very peaceful and respectful environment, because no inappropriate language was used,” Iran’s lead negotiator, Foreign Minister Abbas Araghchi, said.
The real ‘Great Replacement’

1 week ago | thebulletin.org | Dawn Stover

Non-white immigrants are “poisoning the blood” of the United States, destroying American culture, threatening to turn white Americans into a minority, and taking jobs from American citizens. The Democratic Party is importing immigrants to tip the scales in US elections. That’s according to the Great Replacement, a fringe conspiracy theory that was invented by the French writer Renaud Camus in the late 1990s and has become increasingly mainstream within the Republican Party.
Dire wolf, or Colossal misrepresentation?

2 weeks ago | thebulletin.org | Jessica McKenzie

Amid a supremely chaotic news environment—dominated by Trump’s deportations, Trump’s funding cuts and layoffs, Trump’s tariffs and, of course, the tumultuous stock market the tariffs produced—one carefully calibrated science story managed to break through the noise and make global headlines this week: A biotechnology company called Colossal Biosciences claims to have resurrected the dire wolf, a species that went extinct over 10,000 years ago.
As more countries enter space, the boundary between civilian and military enterprise is blurring. Dangerously.

2 weeks ago | thebulletin.org | Zohaib Altaf |Dawn Stover

Outer space is no longer just for global superpowers and large multinational corporations. Developing countries, start-ups, universities, and even high schools can now gain access to space. The democratization of space has led to significant technological advancements, economic growth, and international collaboration. In 2024, a record were launched into space.
Once seen as a symbolic protest, the nuclear ban treaty is growing teeth

3 weeks ago | thebulletin.org | Olamide Samuel |Thomas Gaulkin

Amid Russia’s war in Ukraine, nuclear saber-rattling, and the United States’ sudden turn away from its longtime transatlantic alliances, fears of nuclear conflict are leading European governments to pursue new ways of protecting themselves. Last month, European Union leaders approved a massive new militarization independent of US support; France is considering extending its own nuclear deterrent over the whole continent; and some countries have resurrected Cold War-style civil defense plans.
Reach for the Stardust? Former Israel Atomic Energy Commission official leads controversial geoengineering start-up

3 weeks ago | thebulletin.org | Ramin Skibba |Jessica McKenzie

Editor’s note: This story was originally published by Undark. It appears here as part of the Climate Desk collaboration. In July 2012, a renegade American businessman, Russ George, took a ship off the coast of British Columbia and dumped 100 tons of iron sulfate dust into the Pacific Ocean.
Maine senator grills intelligence director Gabbard on omission of climate change from annual threat report

1 month ago | thebulletin.org | Jessica McKenzie

Much of the Senate Intelligence Committee hearing on Tuesday was taken up by questions about the use of a private, encrypted messaging app by leaders of the US intelligence community to discuss the details of an upcoming attack on Yemen.
Mars Attacks: How Elon Musk's plans to colonize Mars threaten Earth

1 month ago | thebulletin.org | Kelly Weinersmith |Zach Weinersmith |Erik English

By Kelly Weinersmith and Zach WeinersmithIllustrations by Zach Weinersmith with select images courtesy of Penguin PressLayout by Erik EnglishMarch 20, 2025 The world is nearly all parcelled out,and what there is left of it is beingdivided up, conquered, and colonised. To think of these stars that you see overhead at night,these vast worlds which we can never reach.