During one very unusual Cold War drill, a Soviet Su-7 Fitter attack jet delivered a live tactical nuclear weapon in an end-to ...

Recently, footage has circulated on social media that appears to document one of the ...

Concrete crumbling like sand, their faces burning red from the radiation. Sky News speaks to Chernobyl workers who did ...

President Trump ripped up a pact designed to prevent Iran from building a bomb. Getting a better agreement now could prove ...

When Iran’s covert nuclear program came to international attention over two decades ago, Tehran insisted that its intentions ...

The Chernobyl disaster remains the world’s worst nuclear accident, displacing hundreds of thousands and reshaping global ...

Al Jazeera spoke with MIT professor Ted Postol about what Iran could do with its 440kg of 60 percent enriched uranium.

Analysts say a review conference is unlikely to halt nuclear powers from continuing to flout the treaty’s rules.

Sunday, April 26, marks the 40th anniversary of the world’s worst nuclear power plant accident at the Chernobyl nuclear power ...

President Trump ruled out using nuclear weapons in Iran on Thursday, saying there’s no need. “Why would I use a nuclear ...

After winning a Breakthrough Prize, the world’s most lucrative science award, theoretical physicist David Gross is using the ...