Discover the dramatic story behind the Tsar Bomba, the largest nuclear weapon ever detonated. This video explores its Cold ...

A senior U.S. official offered new details Tuesday night about an alleged nuclear bomb test conducted by China in June 2020. Assistant Secretary of State Christopher Yeaw spoke at a Hudson Institute ...

Add Yahoo as a preferred source to see more of our stories on Google. An unarmed intercontinental ballistic missile launches during an operational test at Vandenberg Air Force Base, California, in ...

President Donald Trump’s call for the United States to resume testing of nuclear weapons last week has experts scratching their heads. What did he really mean – exploding a warhead or testing delivery ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...

A top Trump administration official on Tuesday disclosed new details to support its claim that China conducted an underground nuclear explosion during Donald Trump’s first presidency, a contested ...

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. Resuming full testing of nuclear weapons — as President Donald Trump called for last week — would be unnecessary, costly, ...