Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

Secretary of War Pete Hegseth’s recent announcement that the U.S. will resume testing nuclear weapons has alarmed some nuclear-arms experts. It shouldn’t. President Trump had already announced earlier ...

President Donald Trump has ordered preparations to resume U.S. nuclear weapons testing, citing alleged Russian and Chinese violations. Moscow and Beijing deny conducting explosive nuclear tests but ...

Add Yahoo as a preferred source to see more of our stories on Google. U.S. President Donald Trump with Chinese President Xi Jinping. China's nuclear expansion is on a trajectory to soon rival ...

During the Cold War the U.S. considered putting nuclear weapons on balloons and letting them float into enemy territory for a strike.

WEST PALM BEACH, Fla. (AP) — 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 ...

In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear testing, a U.S. government representative defended the stance at a global nuclear arms ...

Senior Russian officials on Nov. 11 said they were still waiting for a White House explanation about what President Donald Trump meant he when said he had instructed the Pentagon to resume nuclear ...

Speaker Mike Johnson (R-La.) gave backup to President Trump when asked about the president vowing to begin testing nuclear weapons for the first time since 1992. “The commander in chief wants us to be ...