Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald Trump vows to restart U.S. tests.

The US is ready to carry out low-yield nuclear tests, ending a decades-old moratorium after allegations of secret explosions by China. | TAG24 ...

The United States is ready to carry out low-yield nuclear tests to match alleged secret explosions by China and Russia, ...

At a event in Washington D.C., A U.S. official said a remote earthquake in 2020 was caused by a Chinese nuclear test.

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

Something big may have just happened in Iran. Unverified reports are claiming a major explosion near the Parchin military complex—a site long linked to Iran’s secretive nuclear weapons research. No ...

C ould nuclear bombs be harnessed to help people? As the Cold War raged on in the 1950s, scientists building nuclear weapons began to ponder whether they could be put toward posit ...

The Rulison test — conducted at a depth of 8,425 feet — was the deepest subterranean nuclear-bomb detonation conducted in U.S. history.