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Lab-designed cells could someday be used in medicine, environmental cleanup, or manufacturing. But today's regulators aren't yet ready for the oversight challenges the coming era of synthetic cells may pose. Read more from David Gillum and Peter A. Carr. ⬇️

Is it a chemical? Is it alive? Oversight in the coming era of synthetic cells could be complicatedLab-designed cells could someday be used in medicine, environmental cleanup, or manufacturing. Imagine spraying biosensing cells on a wall to test for hidden mold or swallowing a pill full of cells…thebulletin.org

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A condition that Saudi Arabia normalize relations with Israel hasn't killed the nuclear agreement—only masked the fine print, writes Sharon Squassoni. Behind official claims that uranium enrichment is off the table, the US admin's deal risks dragging Washington straight into a trap.

The US-Saudi nuclear deal isn't dead—It's dragging Washington into nonproliferation quicksandA condition that Saudi Arabia normalize relations with Israel hasn't killed the nuclear agreement—it has only masked the fine print. Behind official claims that uranium enrichment is off the table,…thebulletin.org

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Is Oppenheimer, WALL-E, The Matrix, or 28 Days Later the best doomsday movie? After a series of head-to-head matches, Bulletin readers have voted on the final four. Which will win? Comment which movie is your favorite on Instagram to be entered into a giveaway: buff.ly/HftgAvE

Climate change is physically altering the operational environment of nuclear deterrence in the Arctic, but the institutions capable of managing these risks are fragmented and frozen in place, write Nikita Gryazin @nikitagryazin.bsky.social and Iren Marinova @irenmarinova.bsky.social.

Climate change exacerbates nuclear risks in the Arctic. And we are not readyClimate change is physically altering the operational environment of nuclear deterrence in the Arctic, but the institutions capable of managing these risks are fragmented and frozen in place.thebulletin.org

Cinema has always been fascinated by catastrophe. Films showcase the dangers of existential risks to millions — and some are even entertaining. Join the Bulletin for today's discussion on "Doomsday on Film" with @maxbrooks.bsky.social, @dandrezner.bsky.social, and @eliserowan.bsky.social.

End Credits: Doomsday on FilmJuly 29, 1:00 ET / 12:00 CTyoutube.com

Released in 1997, Gattaca was a box-office disappointment. But it's become one of the most influential cultural texts to explore biotechnology and its social consequences, especially in a world where CRISPR-based gene editing and consumer genomics are becoming more common, writes David A. Kirby.

Gattaca and the quiet Doomsday of genetic determinismGattaca was a box-office disappointment when it was released in 1997. It has since become one of the most influential cultural texts to explore biotechnology and its social consequences, especially…thebulletin.org

Gattaca "remains relevant because it shows how easily genetic information can become a measure of human worth—and how readily that standard can harden into a discriminatory hierarchy," writes David A. Kirby.

Gattaca and the quiet Doomsday of genetic determinismGattaca was a box-office disappointment when it was released in 1997. It has since become one of the most influential cultural texts to explore biotechnology and its social consequences, especially…thebulletin.org

Tomorrow, join the Bulletin for a conversation about "Doomsday on Film" with @maxbrooks.bsky.social, @dandrezner.bsky.social, and @eliserowan.bsky.social. Register for free below. ⬇️

End Credits: Doomsday on FilmOn July 29, join the Bulletin of the Atomic Scientists to explore the on screen depictions of doomsday, from nuclear war to climate change.pages.thebulletin.org

US efforts to expand global nuclear exports threaten to spur a dangerous proliferation wave, write Logan Mintz and Matthew Sharp. To prevent the spread of weapons-usable technology, Washington must pair aggressive nuclear trade with creative fuel-sharing alternatives and tougher safeguards.

Balancing global uranium enrichment needs and proliferation risks: A frameworkUS efforts to rapidly expand global nuclear exports threaten to spur a dangerous proliferation wave. To prevent the spread of weapons-usable technology, Washington must pair aggressive nuclear trade…thebulletin.org

Matt Field @mattyfield.bsky.social reports that while plenty of hurdles remain for anyone hoping to use fast-improving AI to develop a bioweapon, one expert notes, 'Where we will find ourselves a year from now is likely to be, without intervention, a much more risky circumstance.'"

AI executives worry about their technologies aiding bioterrorists. How likely is that?Plenty of hurdles remain for anyone hoping to use fast-improving AI to develop a bioweapon, but, as one expert notes, "Where we will find ourselves a year from now is likely to be, without…thebulletin.org

"AI threatens the news industry’s ability to support that kind of reportage—not just on nuclear weapons, but also on other existential risks, including artificial intelligence itself." Read more in a new essay by Atomic Reporters founder, Peter Rickwood.

How artificial intelligence threatens the news industry’s ability to report on existential risks—including those posed by nuclear weapons and AIReporting on a subject area as complex and opaque as nuclear weapons demands dedicated, time-consuming journalism. AI threatens the news industry’s ability to support that kind of reportage—not just…thebulletin.org

The National Academy of Sciences is on Trump’s radar because they are in his way." from Benjamin Santer in a new essay on "Carnage in pursuit of power, revenge, personal financial gain, and ego."

American Nero: Why Trump is trying to burn down the National Academy of SciencesCarnage in pursuit of power, revenge, personal financial gain, and ego.thebulletin.org

“Organizations ranging from the United Nations, to the Pope, to a consortium of nonprofits and academics known as Stop Killer Robots, decry the use of AI in warfare, especially in the deployment of lethal autonomous weapons.” Read more in a new investigative piece ⬇️

The rise of the military-technology complexHow Silicon Valley tech firms remade US defense contracting. And then opened the Pentagon’s checkbook—wide.thebulletin.org

"As nuclear power becomes a more common part of commercial and governmental space missions, the safety and security frameworks established by City Labs may matter as much as the nuclear battery itself."

How a small radioactive battery paves the way for transparent nuclear use in spaceThe launch of City Labs' tritium-powered BOHR satellite marks a major milestone for commercial nuclear power in orbit. By navigating a groundbreaking FAA regulatory process and setting new precedents…thebulletin.org

Join the Bulletin on Wednesday for a discussion of "Doomsday on Film" with @maxbrooks.bsky.social @dandrezner.bsky.social and @eliserowan.bsky.social Register here: pages.thebulletin.org/2026-0729-en...

"The irony is inescapable. Months after the last nuclear arms control agreement between Russia and the United States expired, tech industry leaders are citing Cold War nuclear verification as a model for regulating the safety of artificial intelligence."

How artificial intelligence threatens the news industry’s ability to report on existential risks—including those posed by nuclear weapons and AIReporting on a subject area as complex and opaque as nuclear weapons demands dedicated, time-consuming journalism. AI threatens the news industry’s ability to support that kind of reportage—not just…thebulletin.org

“The technologies we’re worried about reduce living people to data points," according to a statement from @stopkillerrobots.bsky.social Read more in a new investigative piece from Bernice Yeung "The rise of the military-technology complex":

The rise of the military-technology complexHow Silicon Valley tech firms remade US defense contracting. And then opened the Pentagon’s checkbook—wide.thebulletin.org

“Move fast and break things is not a suitable motto for any conscientious military organization.” Read more in a new investigative piece from Bernice Yeung "The rise of the military-technology complex"

The rise of the military-technology complexHow Silicon Valley tech firms remade US defense contracting. And then opened the Pentagon’s checkbook—wide.thebulletin.org