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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To win on nuclear energy, the United States should lose reprocessing

1 week ago | thebulletin.org | John Mecklin

Trump's executive orders on nuclear energy unfortunately played the prospect of nuclear fuel reprocessing and recycling prominently—even though reprocessing has a history of cost overruns and poses serious security concerns. The siren song of spent nuclear fuel reprocessing beckons again, selling a sweet melody that, actually, threatens to stymie hopes of a nuclear energy revival in the United States.
Young people will be key to preventing the next pandemic

2 weeks ago | thebulletin.org | Matt Field

The World Health Organization (WHO) headquarters. Credit: ©Yann Forget / Wikimedia Commons / CC-BY-SA. Though countries across Africa, Asia, and Latin America, sometimes collectively called the Global South, are increasingly central to scientific research, disease surveillance, and public health innovation, they historically have had little say in the shaping of policies meant to keep international health crises at bay.
China to build world's largest hydroelectric project in Tibet, prompting fears of 'water bombs' and environmental destruction

2 weeks ago | thebulletin.org | Jessica McKenzie

Editor’s note: This story was originally published by Yale e360. It appears here as part of the Climate Desk collaboration. China has announced plans to build the world’s largest hydroelectric project at a remote river gorge in eastern Tibet, an ecological treasure trove close to a disputed border with India. Indian politicians have reacted angrily, saying it gives China the ability to release destructive “water bombs” across the border in any future conflict.
The 15-minute interview: Joe Cirincione on Golden Dome and the long-running US missile defense debacle

2 weeks ago | thebulletin.org | John Mecklin

After President Trump announced the start of a so-called Golden Dome missile defense project early this week, major press coverage was largely matter-of-fact and relatively unperturbed. Some news reports included quotes from experts who questioned the administration’s estimates of the cost and time required to complete the enormously complex and ambitious project.
Decommissioned, retired, paused: The weather, climate, and Earth science data the government doesn’t want you to see

2 weeks ago | thebulletin.org | Jessica McKenzie

In the early 1990s, a University of Michigan graduate student named Jeff Masters started working on an internet weather project to share real-time weather information and satellite imagery, something most people take for granted today but was at the time revolutionary.
Trump's last minute gain-of-function policy could sow researcher confusion

2 weeks ago | thebulletin.org | Matt Field

In 2011, two teams of scientists created an uproar after revealing they had separately mutated the H5N1 bird flu virus to spread among ferrets through the air, something it didn’t do naturally. The teams had created a virus that, were it to be found in nature or leak from a lab, would be a potential pandemic threat, experts said. And critics questioned whether the benefits of the experiments had outweighed the risks.
Why we should seriously consider vaccinating wild birds to control bird flu

3 weeks ago | thebulletin.org | Matt Field

Avian H5N1 took a big leap about four years ago. Previously the virus, first detected in the mid-1990s, would tear through domesticated poultry, killing off flocks in days. It occasionally jumped to wild birds, but it never managed to spread very far for very long. That changed in 2021 to 2022. Avian influenza or “bird flu” had long been fairly innocuous in wild birds, but the latest strain left birds severely stricken with neurological or other symptoms.
Why we should seriously consider vaccinating wild birds to control bird flu

3 weeks ago | thebulletin.org | Matt Field

Avian H5N1 took a big leap about four years ago. Previously the virus, first detected in the mid-1990s, would tear through domesticated poultry, killing off flocks in days. It occasionally jumped to wild birds, but it never managed to spread very far for very long. That changed in 2021 to 2022. Avian influenza or “bird flu” had long been fairly innocuous in wild birds, but the latest strain left birds severely stricken with neurological or other symptoms.
Beyond Iran: a new nuclear doctrine for the Persian Gulf

3 weeks ago | thebulletin.org | John Mecklin

After a letter was exchanged between US President Donald Trump and Iranian Leader Ayatollah Ali Khamenei, and since the first talks of April 12, four rounds of indirect and direct bilateral negotiations about Iran’s nuclear program have made progress. Iran Foreign Minister Abbas Araghchi and President Trump’s chief negotiator Steve Witkoff are leading the talks. At this stage of the talks, both sides should have reached a mutual understanding on verification and transparency measures.
Interview: The ‘holy grail’ of pandemic preparedness-the search for a universal vaccine

3 weeks ago | thebulletin.org | Matt Field

PREMIUM A colorized structure of a prototype from an earlier trial for a universal flu vaccine, known as H1ssF_3928, at the NIH Clinical Center in Bethesda, MD.