Newsweek has broken down how Moscow, Beijing, London, New York, Los Angeles, Tokyo and Paris would be affected if any of ...

President Donald Trump announced he is ordering the U.S. to resume nuclear testing, leaving experts wondering what this would ...

Though the country’s nuclear arsenal has undergone no explosive testing for decades, federal experts say it can reliably ...

For more than 30 years, major nuclear powers have refrained from testing nuclear bombs. But that streak may soon be over as ...

Trump said the U.S. will test nuclear weapons “on an equal basis” with Russia and China. None of the three countries has ...

President Donald Trump ordered the U.S. to resume nuclear testing for the first time since a moratorium was declared in 1993.

Trump's statement about nuclear testing came about 100 days before the expiration of the New Strategic Arms Reduction Treaty ...

President Donald Trump reiterated Friday that he wants testing of US nuclear weapons but again failed to clarify whether he ...

The Soviet Union detonated the most powerful nuclear weapon in the history of humankind, the Tsar Bomba, on October 30, 1961.

U.S. President Donald Trump ordered the U.S. military on Thursday to immediately resume testing nuclear weapons after a gap ...

But President Donald Trump ’s back-to-back announcements about nuclear testing and nuclear submarines on Oct. 29 during his ...

The hydrogen bomb, unlike the atomic bomb used on Hiroshima, generates energy through fusion by fusing isotopes of hydrogen, ...