Enriched uranium

US Secretary of State John Kerry and US Energy Secretary Dr. Ernest Moniz sit side-by-side on April 2, 2015, in Lausanne, Switzerland, before the P5+1 member nations held a meeting to discuss ongoing nuclear negotiations with Iran.

The Iran nuclear deal wouldn’t have been possible without computer models

Global Politics

The Iran nuclear deal covers thousands of centrifuges and hundreds of kilograms of uranium and many other numbers and portions of substances and technologies. Those numbers are far from random, too. The technical details of the framework agreement were based on complex models developed by the US Department of Energy.

President Barack Obama and Russia's foreign minister, Sergey Lavrov, are seen in this combination photo as they attend the opening ceremony of the Nuclear Security Summit in The Hague on March 24, 2014.

Relations with Russia chill, and nuclear security cooperation gets put on ice

Science
The World

Iran strikes nuclear deal with Brazil and Turkey

Global Politics
Nuclear power plant unit in Bushehr, Iran

The deal freezing Iran’s nuclear program starts in a week

Global Politics

Clinton, Gates discuss Iran’s nuclear ambitions

North Korea Agrees to Halt Nuclear Work

North Korea has agreed to suspend uranium enrichment and agreed to a moratorium on nuclear, and long-range missile tests. The State Department says Pyongyang  will also allow the International Atomic Energy inspectors to verify and monitor the moratorium on uranium enrichment and confirm disablement of its nuclear reactor at Yongbyon. Karin Lee is executive director of […]

The World

Iranian Nuclear Scientist Killed in Tehran Explosion

Global Politics

A nuclear scientist is killed after a suspected bomb exploded in a car in northern Tehran, the latest in a string of such nuclear-linked attacks.

The World

Serbia Sending its Nuclear Waste Back to Russia

Environment

Serbia has sent 2.5 tons of its remaining nuclear waste, including highly-enriched uranium from a nuclear research facility near Belgrade, to a disposal site in Russia. The month-long secret operation was the largest single shipment made to return such nuclear material to the country where it originally came from. However, details of the route are […]

The World

Wikileaks documents shed light on US-Pakistani relations

Global Politics

Among the State Department cables leaked on WikiLeaks were messages from the U.S. Ambassador to Pakistan about the country’s nuclear fuel resources. The cables show that underneath public assurances lie deep clashes over strategic goals.

The World

UN inspectors visit Iran nuke facility

Global Politics

United Nations inspectors arrived in Iran yesterday for a three-day visit of its recently-disclosed uranium enrichment facility. We’re joined by the BBC’s Jon Leyne and Scott Ritter, former chief weapons inspector for the U.N. Special Commission in Iraq.