Right now, there are over 400 nuclear power plants operating in 20 countries. Could they be ticking time bombs? Possibly ...

Washington claims new seismic data indicate an underground explosion, while Beijing denies any nuclear activity.

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

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

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

A nuclear engineer examines how visual effects artists interpret the size and power of nuclear explosions. The reaction ...

A senior US official revealed what he described as new details about an alleged underground nuclear test that China conducted ...

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 United States on Friday accused China of carrying out a secret nuclear test in 2020 as the Trump administration calls for ...

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