(CNN) — Russian President Vladimir Putin says his country will explore the possibility of carrying out fresh nuclear tests after US President Donald Trump said last week that Washington would begin ...

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the Earth, sea, air, and even in orbit. The physics of shock waves, sound, and ...

Add Yahoo as a preferred source to see more of our stories on Google. People perform for North Korean leader Kim Jong Un during a celebration for nuclear scientists and engineers who contributed to a ...

Resuming full testing of nuclear weapons - as President Donald Trump called for last week - would be unnecessary, costly, undermine nonproliferation efforts, and empower the nation's adversaries to ...

VIENNA (AP) -- The United States and Russia have both recently threatened to resume nuclear testing, alarming the international community and jeopardizing a global norm against such tests. Experts say ...

(CNN) — US President Donald Trump and Russian President Vladimir Putin have spent weeks trading threats to restart nuclear tests, an escalation kicked off by Putin’s boasts about tests of the Poseidon ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one. “As of today, the ...