At a event in Washington D.C., A U.S. official said a remote earthquake in 2020 was caused by a Chinese nuclear test.

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

(Reuters) -U.S. President Donald Trump ordered the U.S. military on Thursday to immediately resume testing nuclear weapons after a gap of 33 years, minutes before beginning a meeting with Chinese ...

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

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 ...

In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear testing, a U.S. government representative defended the stance at a global nuclear arms ...

President Donald Trump’s announcement that he has ordered the United States to resume nuclear testing “immediately” — a move that could overturn a global taboo against the practice that has lasted ...

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...

Hydronuclear experiments, barred globally since the 1990s, may lie behind President Trump’s call last month for the United States to resume its testing of nuclear bombs. By William J. Broad President ...

Experts warn that resumption of full nuclear weapons tests is unnecessary and would undermine the United States' efforts to discourage other nations from testing their own nukes. (Tech. Sgt. Draeke ...