Washington’s gamble on metallic fast reactors and the use of plutonium in them could turn bomb metal into centuries of power.

After decades of delays, workers at the Hanford nuclear site this October finally began treatment of the 56 million gallons ...

Manhattan Project scientists working on the Thin Man plutonium gun assembly. Two atomic bombs nicknamed Little Boy and Fat Man were detonated over Hiroshima and Nagasaki in August 1945, effectively ...

SEATTLE — For much of the 20th century, a sprawling complex in the desert of southeastern Washington state turned out most of the plutonium used in the nation’s nuclear arsenal, from the first atomic ...

An atomic bomb test at Bikini Lagoon. Marshall Islands, July 1946. Today is the 80th anniversary of the bombing of Hiroshima and the first use of an atomic bomb in war, in this case by the United ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

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 ...

SEOUL (Reuters) - North Korea's Foreign Ministry called on Monday for direct talks with its long-time foe, the United States, and said it was ready to return to stalled six-way nuclear disarmament ...

Hydronuclear experiments, barred globally since the 1990s, may lie behind President Trump’s call last month for the United States to resume its testing of nuclear bombs.

When it comes to marking anniversaries of the atomic bomb, there are a few obvious choices. July 16, 1945, was the date of the Trinity test, the first nuclear explosion, and has been used by some as ...

-On August 6, 1945, the B-29 Enola Gay dropped the "Little Boy" uranium bomb on Hiroshima, killing up to 166,000 people. [caption id="attachment_22456" align ...