Nuclear weapons testing has affected every single human on the planet, causing at least four million premature deaths from ...

North Korea’s primary nuclear test site was built deep inside a mountain designed to contain massive underground explosions. After six nuclear tests, including a powerful detonation in 2017, seismic ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one.

Between 1945 and 2017, more than 2,400 nuclear devices were detonated in tests conducted by nuclear powers across multiple continents.

WEST PALM BEACH, Fla. (AP) — 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 ...

VIENNA (AP) — The United States and Russia have both recently threatened to resume nuclear testing, alarming the international community and jeopardizing a global norm against such tests. Experts say ...

As the cloud cleared, Air Force bombers dropped in to gather air samples. Researchers hoped that the radioactive fallout ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...

Two concurrent nuclear explosions over a US town were narrowly averted on January 24, 1961.

Clarity is key on most issues relating to nuclear weapons, and testing them is no exception. America’s adversaries are carrying out low-level nuclear tests and gaining an advantage over the United ...