The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the ...

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

President Donald Trump ordered the Department of War to resume testing nuclear weapons “on an equal basis” with Russia and China on Thursday, a practice halted by the U.S. in 1992. The announcement ...

VIENNA, Oct 30 (Reuters) - The head of the Comprehensive Nuclear-Test-Ban Treaty Organization, or CTBTO, said on Thursday that any explosive nuclear weapon test would be harmful for global ...

President Donald Trump announced on Wednesday that he is ordering the United States to resume nuclear testing, leaving experts wondering what this testing would entail and how it would be implemented.

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 ...

President Donald Trump’s announcement that the United States will resume nuclear weapons testing for the first time in more than three decades has sent shockwaves through both Washington and world ...

It began in an era when the night sky was pristine, long before the metallic glint of satellites and the clutter of orbital debris. Between 1949 and 1957, the Palomar Observatory’s first all-sky ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE - A mushroom cloud rises from a test blast at the Nevada Test Site on June 24, 1957. (U.S. Energy Department via AP, File) ...

Bombshell shows how the government tried to minimize the effects of radiation and prevent independent reporting through ...

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 ...