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illustration of chess pieces made of flags of the nine nuclear weapons states falling over with Ukrainian flag in the background

Has the Russia-Ukraine war blown up the global nuclear order?

By Lauren Sukin | Nuclear Risk, Nuclear Weapons

A technician prepares salts for use in MSRE in 1964. By Oak Ridge National Laboratory. Accessed via Flickr. CC BY 2.0.

Molten salt reactors were trouble in the 1960s—and they remain trouble today

By M. V. Ramana | Analysis, Nuclear Energy, Nuclear Risk, Nuclear Waste

Newsstand. Credit: Claudio Schwarz. Unsplash License. https://unsplash.com/photos/C-F0o855g74

During an ‘epidemic’ of news avoidance, moderation is key

By Susan D’Agostino | Analysis, Climate Change, Disruptive Technologies, Nuclear Risk, Nuclear Weapons

Review: India’s “Rocket Boys” series fetishizes science—and the atomic bomb—in a dangerous way

By Urvashi Sarkar | Analysis, Nuclear Energy, Nuclear Weapons

An artist's rendition of Russian President Vladimir Putin's nuclear posture. Photo credit: kremlin.ru, changes made, CC BY 3.0.

Will Putin go nuclear? An updated timeline of expert comments

By Susan D’Agostino, François Diaz-Maurin | Nuclear Risk, Nuclear Weapons

Some disagree that it is 100 seconds to midnight. These undergrads held a debate

By Nitish Vaidyanathan | Climate Change, Doomsday Clock, Nuclear Risk, Personal Essay

US President Bill Clinton, Russian President Boris, Yeltsin, and Ukrainian President Leonid Kravchuk sign the Trilateral Agreement on transferring nuclear weapons from Ukraine to Russia and associated matters in Moscow, January 1994. Photo credit: Joseph P. Harahan, historian of the Defense Threat Reduction Agency, and the Clinton Presidential Library.

Why Putin’s betrayal of Ukraine could trigger nuclear proliferation

By Steven Pifer | Nuclear Weapons, Opinion

Making sense of North Korea’s recent ICBM and (possible) nuclear tests

By Seiyeon Ji, Victor Cha | Analysis, Nuclear Weapons

A wind farm off the coast of Sweden, aerial photograph

An energetic exchange on the costs of decarbonizing Europe

By Amory B. Lovins, Robert Rosner, Sabrina Fields | Climate Change, Nuclear Energy

Rebuttal: Current nuclear weapons policy not safe or sane

By Stewart Prager, Alan Kaptanoglu | Analysis, Nuclear Risk, Nuclear Weapons

Nuclear Notebook: How many nuclear weapons does the United States have in 2022?

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

Russian President Vladimir Putin spoke at the military parade marking the end of World War II. May 9, 2022. Red Square, Moscow. Credit: Website of the President of Russia. CC BY 4.0.

On Victory Day, Putin points fingers but doesn’t escalate war

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons