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 ...

President Trump has argued the U.S. should test nuclear weapons because other countries are doing it. But scientific data suggest they’re not.

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 ...

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

The trial included first-of-its-kind thermal preconditioning of the bomb before carriage on an F-35 fighter jet.

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 ...

President Donald Trump’s recent social media post about his intention for the United States to resume nuclear weapons testing ...