WEST PALM BEACH, Fla. — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was the ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...

India's nuclear journey began with the 1974 'Peaceful Nuclear Explosion' at Pokhran, making it the sixth nation to harness ...

Donald Trump has repeatedly called the proliferation of nuclear weapons “the n-word,” his way of warning that speaking “nuclear” into existence puts the world on the path of mutually assured ...

SEOUL, South Korea (AP) — North Korea said it conducted a “higher level” nuclear test explosion on Friday that will allow it to finally build an array of stronger, smaller and lighter nuclear weapons.

The head of the organization overseeing a treaty banning nuclear testing is warning that if the United States, Russia or any ...

The State Department’s allegation that China conducted a yield-producing nuclear test in 2020 is reigniting debate in Washington over whether the United States can continue its decades-long moratorium ...

Satellite imagery of two Kusong sites in North Pyongan province shows new construction and repairs linked to nuclear weapons ...

As Iran’s nuclear program advances, the critical question of whether Tehran would need to conduct nuclear tests to ensure its weapons are effective looms over the consciousness of the international ...

What You Need to Know: Russia’s recent changes to its nuclear doctrine and tests of the Oreshnik intermediate-range ballistic missile are raising concerns about a potential escalation in the Ukraine ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. Trump suggests the U.S. will resume testing nuclear weapons President Donald ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. "We've halted many years ago, but with others doing testing I think it's ...