Russian officials say they are waiting for an explanation from President Donald Trump about nuclear testing. He hasn't given ...

Experts agreed if the U.S. resumed full nuclear weapons tests, other nations would do the same — giving them a chance to ...

Marco Rubio told reporters Wednesday that nuclear testing plans are "on par with what other countries are doing." ...

Citizen activism and legislative pressures helped stop US nuclear weapon testing. They will be needed again to protect the ...

Energy Secretary says administration will tests nuclear weapons ‘systems’ without detonating devices — for now ...

Energy Secretary Chris Wright said the testing ordered up in a surprise announcement by President Trump last week would focus ...

President Trump wants to restart domestic testing to keep up with adversaries like China and Russia, but nuclear experts ...

The recent nuclear tensions come after Russia tested a so-called doomsday device—the nuclear-powered, nuclear-armed Poseidon ...

Donald Trump is pushing to resume testing nuclear weapons, leading Vladimir Putin to do the same. The legacy of nuclear tests is devastating.

Few people know the harm nuclear testing can do better than inhabitants of the Marshall Islands which was a US-administered trust territory of the United Nations from 1947 to 1986.

Trump announced late Thursday that he had ordered the Pentagon to begin testing nuclear weapons on an “equal basis” with Russia and China. The move would mark the first time the United States would ...