Bulletin of the Atomic Scientists

Atomic Bomb Dome in the Hiroshima Peace Memorial Park. Credit: Michael Helmer. Public domain image accessed via Wikimedia Commons.

Atomic Bomb Dome in the Hiroshima Peace Memorial Park. Credit: Michael Helmer. Public domain image accessed via Wikimedia Commons.

Opinion: In an era of climate change and COVID, Hiroshima reminds us of another existential threat.

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons, Opinion

Boris Johnson

How to trash confidence in a COVID-19 vaccine: Brexit edition

By Stephan Lewandowsky, Stefanie Egidy, Ralph Hertwig, Ulrike Hahn | Disruptive Technologies

red coral fan underwater

red coral fan underwater

Latest idea for saving the Great Barrier Reef? Dump crushed rocks on it

By Graham Readfearn | Climate Change

Rescue and clean-up crews search for casualties following the barracks bombing in Beirut on October 23, 1983. If negotiators hope to revive the Iran nuclear deal, they must address the billions of dollars’ worth of civil judgments by US victims of terrorism against Iran. Photo credit: United States Marine Corps. Public domain image.

Rescue and clean-up crews search for casualties following the barracks bombing in Beirut on October 23, 1983. If negotiators hope to revive the Iran nuclear deal, they must address the billions of dollars’ worth of civil judgments by US victims of terrorism against Iran. Photo credit: United States Marine Corps. Public domain image.

US courts say Iran owes terrorism victims billions. That’s an obstacle to a new Iran nuclear deal.

By Christopher A. Bidwell | Nuclear Risk, Nuclear Weapons, Opinion

A deer.

White-tailed deer are getting coronavirus infections: How big of a problem is that?

By Matt Field | Analysis

satellite view Aegean Sea

satellite view Aegean Sea

Sun glint—bane of climate modellers who use satellite images—may have silver lining

By Gemma Tarlach | Climate Change

Illustration of a conceptual spacecraft enabled by nuclear thermal propulsion. Credit: NASA

Illustration of a conceptual spacecraft enabled by nuclear thermal propulsion. Credit: NASA

Is using nuclear materials for space travel dangerous, genius, or a little of both?

By Susan D’Agostino | Analysis, Nuclear Energy, Nuclear Risk, Opinion

Physicist Steven Weinberg, January 28, 2008. Credit: Larry Murphy, The University of Texas at Austin. Used with permission.

Physicist Steven Weinberg, January 28, 2008. Credit: Larry Murphy, The University of Texas at Austin. Used with permission.

Steven Weinberg, Nobel laureate in physics and Bulletin board member, dies at 88

By Susan D’Agostino | Doomsday Clock, Nuclear Risk, Nuclear Weapons, Opinion, Special Topics

dead tree sand dune

dead tree sand dune

Climate scientist: “It’s already worse than what I imagined”

By Sofia Andrade | Climate Change

AMBER WAVES OF GRAIN. This field of ceramic nose-cones represents, in miniature, all the warheads in the US nuclear arsenal at the height of the Cold War, along with the nuclear submarines, bombers, and ballistic missiles designed to deliver them. Estimates put the warhead count at around 25,000. Denver sculptress Barbara Donachy created this installation to show what such a concentration of nuclear weaponry would look like all in one place. Her display contains 33,561 pieces representing 31,000 warheads, 1,799 ballistic missiles, 324 intercontinental bombers, and 37 nuclear submarines. Amber Waves of Grain installation by Barbara Donachy, Boston Science Museum, Boston, Massachusetts. February 13, 1985. Photograph copyright by Robert Del Tredici, The Atomic Photographers Guild. Used with permission.

AMBER WAVES OF GRAIN. This field of ceramic nose-cones represents, in miniature, all the warheads in the US nuclear arsenal at the height of the Cold War, along with the nuclear submarines, bombers, and ballistic missiles designed to deliver them. Estimates put the warhead count at around 25,000. Denver sculptress Barbara Donachy created this installation to show what such a concentration of nuclear weaponry would look like all in one place. Her display contains 33,561 pieces representing 31,000 warheads, 1,799 ballistic missiles, 324 intercontinental bombers, and 37 nuclear submarines. Amber Waves of Grain installation by Barbara Donachy, Boston Science Museum, Boston, Massachusetts. February 13, 1985. Photograph copyright by Robert Del Tredici, The Atomic Photographers Guild. Used with permission.

Will Canada remain a credible nonproliferation partner?

By Susan O’Donnell, Gordon Edwards | Nuclear Energy, Nuclear Risk, Nuclear Weapons, Opinion

Smolny College Commencement, 2019. Smolny College—the first liberal arts program in Russia—was founded as a dual-degree program between Bard College in the United States and St. Petersburg University in Russia. Last month, the Russian State Prosecutor’s Office labeled Bard College “undesirable,” which criminalized Bard’s decades-long partnership with St. Petersburg University. Photo credit: Bard College. Used with permission.

Smolny College Commencement, 2019. Smolny College—the first liberal arts program in Russia—was founded as a dual-degree program between Bard College in the United States and St. Petersburg University in Russia. Last month, the Russian State Prosecutor’s Office labeled Bard College “undesirable,” which criminalized Bard’s decades-long partnership with St. Petersburg University. Photo credit: Bard College. Used with permission.

Why scientists should respond to Russia’s criminalizing of a US educational exchange

By Susan D’Agostino | Interviews, Nuclear Risk, Opinion

Atomic Bomb Dome in the Hiroshima Peace Memorial Park. Credit: Michael Helmer. Public domain image accessed via Wikimedia Commons.

Atomic Bomb Dome in the Hiroshima Peace Memorial Park. Credit: Michael Helmer. Public domain image accessed via Wikimedia Commons.

Opinion: In an era of climate change and COVID, Hiroshima reminds us of another existential threat.

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons, Opinion

Boris Johnson

How to trash confidence in a COVID-19 vaccine: Brexit edition

By Stephan Lewandowsky, Stefanie Egidy, Ralph Hertwig, Ulrike Hahn | Disruptive Technologies

red coral fan underwater

red coral fan underwater

Latest idea for saving the Great Barrier Reef? Dump crushed rocks on it

By Graham Readfearn | Climate Change

North Korea’s military parade on October 10, 2020

North Korea’s military parade on October 10, 2020

Nuclear Notebook: How many nuclear weapons does North Korea have in 2021?

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Weapons

Members of the World Health Organization (WHO) team investigating the origins of the COVID-19 coronavirus arrive by car at the Wuhan Institute of Virology on February 3. (Photo by HECTOR RETAMAL/AFP via Getty Images)

Members of the World Health Organization (WHO) team investigating the origins of the COVID-19 coronavirus arrive by car at the Wuhan Institute of Virology on February 3. (Photo by HECTOR RETAMAL/AFP via Getty Images)

The origin of COVID: Did people or nature open Pandora’s box at Wuhan?

By Nicholas Wade | Biosecurity

A deer.

White-tailed deer are getting coronavirus infections: How big of a problem is that?

By Matt Field | Analysis

dead tree sand dune

dead tree sand dune

Climate scientist: “It’s already worse than what I imagined”

By Sofia Andrade | Climate Change

Rescue and clean-up crews search for casualties following the barracks bombing in Beirut on October 23, 1983. If negotiators hope to revive the Iran nuclear deal, they must address the billions of dollars’ worth of civil judgments by US victims of terrorism against Iran. Photo credit: United States Marine Corps. Public domain image.

Rescue and clean-up crews search for casualties following the barracks bombing in Beirut on October 23, 1983. If negotiators hope to revive the Iran nuclear deal, they must address the billions of dollars’ worth of civil judgments by US victims of terrorism against Iran. Photo credit: United States Marine Corps. Public domain image.

US courts say Iran owes terrorism victims billions. That’s an obstacle to a new Iran nuclear deal.

By Christopher A. Bidwell | Nuclear Risk, Nuclear Weapons, Opinion

satellite view Aegean Sea

satellite view Aegean Sea

Sun glint—bane of climate modellers who use satellite images—may have silver lining

By Gemma Tarlach | Climate Change

Illustration of a conceptual spacecraft enabled by nuclear thermal propulsion. Credit: NASA

Illustration of a conceptual spacecraft enabled by nuclear thermal propulsion. Credit: NASA

Is using nuclear materials for space travel dangerous, genius, or a little of both?

By Susan D’Agostino | Analysis, Nuclear Energy, Nuclear Risk, Opinion

Physicist Steven Weinberg, January 28, 2008. Credit: Larry Murphy, The University of Texas at Austin. Used with permission.

Physicist Steven Weinberg, January 28, 2008. Credit: Larry Murphy, The University of Texas at Austin. Used with permission.

Steven Weinberg, Nobel laureate in physics and Bulletin board member, dies at 88

By Susan D’Agostino | Doomsday Clock, Nuclear Risk, Nuclear Weapons, Opinion, Special Topics

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UNSCOM bioweapons inspectors at a facility in Iraq, October 1991.<br />(UN photo; cover by Thomas Gaulkin)

UNSCOM bioweapons inspectors at a facility in Iraq, October 1991.<br />(UN photo; cover by Thomas Gaulkin)

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