Nuclear Almanac

Explore our nuclear world with an extensive collection of data and interactive maps about nuclear stockpiles, facilities, and forces.

Nuclear Facilities

Learn about the facilities that produce and refine the nuclear materials, conduct research on weapon design, and store the completed weapons.

Nuclear Forces

Explore the state of the world's current nuclear arsenals.

Nuclear Testing

Explore over seven decades of worldwide nuclear testing by seven countries.

Nuclear Stockpiles

Examine the history of the global stockpile of nuclear arms.

Broken Arrows: Nuclear Accidents

Learn about the more than 30 nuclear weapon accidents, known as “Broken Arrows”.

Nuclear Power Accidents

Learn about major nuclear power accidents.

Nuclear Smuggling Incidents

Learn about illicit trafficking in many types of nuclear materials worldwide.