The National Nuclear Security Administration urgently asked the White House for funds to prevent the agency from having to furlough its staff, sources told CNN.

The test came as the U.S. prepared sanctions on Russia’s oil and gas sectors and European allies pledged more military aid to Ukraine.

Vladimir Putin has warned the end of the last US-Russia pact limiting nuclear weapons could trigger an arms race ... but they were halted in 2020 because of the Covidpandemic and have not resumed. In ...

A new thriller from director Kathryn Bigelow raises key questions about presidential authority, global security and nuclear ...

The 80th anniversary of the atomic bombing of Hiroshima and Nagasaki is this week. It was the only time nuclear warheads were used during war. Here’s a look at the history and current U.S. stockpile.

WASHINGTON − The agency responsible for building, maintaining, and storing America's nuclear weapons faces an internal review of its costly effort to reestablish mass production of nuclear warhead ...

HIROSHIMA, Japan, Aug 6 (Reuters) - Exactly 80 years since an atomic bomb was used in war for the first time, thousands bowed their heads in prayer in Hiroshima on Wednesday, as the city's mayor ...

HIROSHIMA, Japan — Shortly before the 80 th anniversary of nuclear attack on Hiroshima early this month, several dozen elementary school students met with atomic bomb survivor and farmer Toshiyuki ...

The atomic bombing of Hiroshima on August 6, 1945, remains a pivotal and controversial event in modern history. Beyond its immediate impact on World War II, it ushered in the nuclear age, forever ...

Global stockpile The Hiroshima atomic bomb, with an explosive yield of 15 kilotons, would be considered a low-yield nuclear weapon by today’s standards. The largest nuclear weapon in the US arsenal ...