Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Earlier this week, Russian President Vladimir Putin revealed that his government has finalized testing of a new nuclear weapon and ...

MAJURO, MARSHALL ISLANDS - Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap - a remote tropical atoll in the central Pacific ...

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

(Reuters) -U.S. President Donald Trump ordered the U.S. military on Thursday to immediately resume testing nuclear weapons after a gap of 33 years, minutes before beginning a meeting with Chinese ...

Add Yahoo as a preferred source to see more of our stories on Google. Donald Trump’s command for the United States to resume nuclear weapons testing will not include explosive tests, for now, ...

DUBAI, United Arab Emirates (AP) — President Donald Trump’s comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to ...

President Donald Trump announced on Thursday, “Because of other countries testing programs, I have instructed the Department of War to start testing our nuclear weapons on an equal basis. That process ...