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

Nuclear weapons are often discussed in abstractions, as if they were just another line item in a defense budget or a bargaining chip in diplomacy. The brutal truth is that they are engineered ...

Studies of the potential climate effects of nuclear war in the 1980s focused on northern hemisphere, large-scale nuclear conflicts, and predicted more extreme global “nuclear winter” scenarios.

Though the country’s nuclear arsenal has undergone no explosive testing for decades, federal experts say it can reliably obliterate targets halfway around the globe. By William J. Broad President ...

Deterring Russia, collecting motherly advice and sending postmortem postcards, through readers’ eyes.

For the first time in more than half a century, there are no binding restraints on the buildup of the largest nuclear forces ...

Just minutes before he was scheduled to meet President Xi Jinping of China, the president threatened on social media to resume nuclear testing “on an equal basis” with other countries. By David E.

Add Yahoo as a preferred source to see more of our stories on Google. The Nuclear Sponge is a five-part explanatory project by USA TODAY that aims to inform readers about the strategic debate and ...

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 the bomb, but come as Washington's ...

At the outset of the Cold War era, the United States and the Soviet Union rapidly built up large nuclear arsenals as part of the prevailing doctrine of deterrence, under which each nation attempted to ...