In recent years, Pyongyang has tested a range of increasingly advanced weapons, including solid-fueled missiles, highly ...

Decades after the Cold War ended, U.S. defense planners concluded that deploying massive megaton-yield gravity bombs over ...

Kim Jong Un pledges "unlimited" nuclear development as North Korea test-fires new cruise missiles designed to carry nuclear ...

A new tool shows the catastrophic impact of a nuclear strike as Russia deploys its “unstoppable” Oreshnik missile, putting ...

The debut followed the North’s first test of a new surface-to-air missile and the arrival of a U.S. nuclear-powered attack ...

VIENNA (AP) — In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear testing, a U.S. government representative defended the stance at a global ...

In 1955, the US Navy detonated a nuclear warhead deep beneath the Pacific Ocean during Operation Wigwam. The test focused on ...

China is rapidly overhauling a network of secret facilities used to manufacture warhead components as it expands its nuclear stockpile faster than any other country, according to an analysis of ...

Nuclear experts are urging the public to demand concrete steps to reduce the risk of devastation due to nuclear weapons.

In the wake of President Trump’s suggestion earlier this year that the U.S. would resume nuclear testing, a U.S. government representative defended the stance at a global nuclear arms control ...

North Korea showed Kim Jong-un at a "nuclear submarine" site; analysts: it aims to justify its nuclear push and cast Seoul's ...

China is estimated to have more than 600 nuclear warheads, a figure the U.S. predicts will exceed 1,000 by the end of the decade.