All nuclear weapons resources
Explainer
How Nuclear Weapons Work
At the center of every atom is a nucleus. Breaking that nucleus apart—or combining two nuclei together—can release large amounts of energy.
Podcast
Destroyer of Worlds
Jess speaks with Oppenheimer biographer Kai Bird about one of Earth's most influential humans and his scientific and political legacies.
Explainer
What is Nuclear Testing?
A resumption would increase the risk of nuclear war.
Video
A World Without Nuclear Weapons
We can build a future that promotes diplomacy, environmental justice for frontline communities, and one where we abolish these uniquely destructive weapons.
Feature
Satellite Database
In-depth details on the 6,718 satellites currently orbiting Earth, including their country of origin, purpose, and other operational details.
Video
Risks & Consequences of Russia's War on Ukraine
What are the humanitarian costs of the use of tactical nuclear weapons?
Feature
2022 Annual Report
How did UCS perform over the last year?
Podcast
What’s Preventing Nuclear Annihilation?
Global security expert Jennifer Knox explains how international treaties reduce the risks of nuclear weapons.
Explainer
Tactical Nuclear Weapons
Also called nonstrategic nuclear weapons, they're designed for battlefield use and have a shorter range than other nuclear weapons.
Activist Resource
Communicating Science
Since its founding, the Union of Concerned Scientists has been a leader in science and technology communication. We’ve worked with thousands of researchers and academics to help them make their work more accessible to lay audiences.
Podcast
US and China’s Nuclear Policy
Dr. Gregory Kulacki discusses China’s nuclear weapons strategy and the Russian war in Ukraine.
Activist Resource
Back from the Brink toolkit
A toolkit for local activists detailing how to organize, use social media, and work with others to abolish nuclear weapons.