The 80th anniversary of the atomic bombing of Hiroshima and Nagasaki is this week. It was the only time nuclear warheads were used during war. Here’s a look at the history and current U.S. stockpile.

Hydronuclear experiments, barred globally since the 1990s, may lie behind President Trump’s call last month for the United ...

Should the U.S. and Russia resume nuclear testing? The answer to that question must be a resounding “No.” Yet President ...

After World War II, the Communist nation worked desperately to build and test its own bomb, terrified of what might happen if it failed. Indeed, a Russian nuclear scientist who attended the Bikini ...