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

In October 1961, the Soviet Union detonated the Tsar Bomba, a nuclear weapon with a yield of 50 megatons. The explosion was ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one.

From Pacific islands to global fallout, a new report traces how decades of nuclear testing left a silent health crisis that ...

There are many things that have defined Nevada over time: the Kit Carson trail, the legalization of gaming and loosening of ...

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the ...

Nuclear weapons testing has affected every single human on the planet, causing at least four million premature deaths from ...

Minutes before walking into a high-stakes meeting with Chinese President Xi Jinping this past week, President Donald Trump announced what could prove to be a stunning shift in American nuclear policy.

BUSAN, South Korea (AP) — President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first time in three decades, saying it would be on an “equal basis” with ...

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 the bomb, but come as Washington's ...

President Donald Trump has called on US military leaders to resume testing nuclear weapons in order to keep pace with other countries such as Russia and China. "Because of other countries testing ...