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.

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the ...

(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 ...

(CNN) — A ghost of the Cold War is rising between the world’s superpowers, just in time for Halloween. In the wake of Russian President Vladimir Putin bragging about his country testing both a nuclear ...

WEST PALM BEACH, Fla. — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was the ...

Energy Secretary Chris Wright revealed the U.S. will not be testing nuclear explosions, putting to rest questions over whether the Trump administration would reverse a decades-old taboo. Testing will ...

(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 ...

One expert says explosive nuclear testing would be 'alarming.' President Donald Trump announced on Wednesday that he is ordering the United States to resume nuclear testing, leaving experts wondering ...

Russia's Vladimir Putin ordered top officials on Wednesday to submit plans for the possible resumption of nuclear testing, a direct response to President Donald Trump's surprise instruction for the ...