France has an estimated 290 nuclear warheads, most of which are launched from submarines.

North Korea has also stepped up weapons testing activity as its leader Kim Jong Un expands his military nuclear program.

Learn why thousands of soldiers were deliberately exposed to radiation from a nuclear bomb in the Soviet Union, and why other ...

The U.S. energy department’s National Nuclear Security Administration (NNSA) has conducted an underground chemical ...

South Korea's maiden flight test of a domestic hypersonic glide vehicle highlights an accelerating bid to field counterstrike assets capable of bolstering ...

Join us as we visit the Trinity Atomic Bomb Test Site, a pivotal location in WWII history. This site, only open to the public twice a year, marks the spot where the first atomic bomb was detonated in ...

Thirty years ago today, President Bill Clinton signed the Comprehensive Nuclear Test Ban Treaty (CTBT). The treaty bars signatory countries from exploding nuclear devices for military or civilian ...

Kim Jong Un says a new weapon tested by North Korea, likely a hypersonic missile, will be an "irresistible force" and "incurable headache" for adversaries.

Add Yahoo as a preferred source to see more of our stories on Google. (Getty) The Trump administration has been pressing China in confidential diplomatic talks over U.S. allegations that Beijing has ...

North Korea's recent hypersonic test signals an evasive theater nuclear strike capability aimed directly at Japan—a proxy ...

North Korea on Thursday rejected an international call to halt nuclear testing, describing the demand as a grave political provocation against the country as tensions over Pyongyangs nuclear weapons ...

“In August of 1945, the city of Hiroshima was destroyed in about nine seconds by a single atomic bomb.” So begins the 1981 documentary The Day After Trinity, in a voice-over against a black background ...