A U.S. official suggested in recent comments that Beijing conducted a test back in the summer of 2020. So why is the Trump ...

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

(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 ...

The United States on Friday accused China of carrying out a secret nuclear test in 2020 as the Trump administration calls for ...

Discussing nuclear weapons earlier this month, Chinese Foreign Ministry spokesperson Mao Ning said the nation “is committed to peaceful development, follows a policy of ‘no first use’ of nuclear ...

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 ...

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.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A subsurface atomic test near Yucca Flats, Nev., in March 1955. (U.S. Atomic Energy Commission via AP) (U.S. Atomic Energy ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...

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 ...