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

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.

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

Dhaka, Jan. 22 -- Nuclear weapons testing between 1945 and 2017 has affected everyone on Earth and is linked to at least four million premature deaths from cancer and other diseases, according to a ...

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

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 ...

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

Add Yahoo as a preferred source to see more of our stories on Google. MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But ...

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the ...

A Pakistani official told CBS News that the country "will not be the first to resume nuclear tests" in response to President Trump's assertion in an interview with 60 Minutes that the country has ...