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

Semipalatinsk was the primary nuclear testing ground of the Soviet Union. Between 1949 and 1989, hundreds of atomic and ...

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’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 ...

Alex Partezana was a 22-year-old Marine in April 1953 when he received an unusual order: to observe nuclear weapons testing in the desert outside Las Vegas, Nevada. He still remembers the first blast ...