The Doomsday Clock is an internationally recognized design that conveys how close we are to destroying our civilization with dangerous technologies of our own making. First and foremost among these are nuclear weapons, but the dangers include climate-changing technologies, emerging biotechnologies, and cybertechnology that could inflict irrevocable harm, whether by intention, miscalculation, or by accident, to our way of life and to the planet. Click here for more information on the topics we cover.

Read the Science and Security Board’s 2018 Doomsday Clock Statement.

Walk through a timeline of Clock changes.

Watch the Bulletin's multimedia presentations.

Read an FAQ on the Doomsday Clock.

Learn more about Turn Back the Clock, our exhibit at the Museum of Science and Industry.