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 ...

Ministers still do not know when RAF jets will be able to carry nuclear weapons or how much the project will cost, the Commons spending watchdog has found. Sir Keir Starmer announced at the Nato ...

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 ...

Just minutes before he was scheduled to meet President Xi Jinping of China, the president threatened on social media to resume nuclear testing “on an equal basis” with other countries. By David E.

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 draft Pentagon report suggests that China has likely loaded more than 100 DF-31 nuclear missiles into silos near its border with Mongolia.  This development would mark a major step in Beijing’s ...

Experts warn that Vladamir Putin's claims have not been independently verified. Earlier this week, Russian President Vladimir Putin revealed that his government has finalized testing of a new nuclear ...

WASHINGTON — Democratic senators representing states that bore the brunt of the fallout from explosive nuclear weapons testing are seeking to pass legislation that would bar President Donald Trump ...

President Trump, during an interview that aired Sunday night on CBS's "60 Minutes," said: NORAH O'DONNELL: Less than an hour before your meeting with President Xi, you posted on social media that you ...

With doomsday nuclear weapons the last remnant of Russia's superpower status, President Vladimir Putin is stepping up threats to use them against Western powers aiding Ukraine. (Photo by Alexander ...

Aerial view of Hiroshima, Japan, after atomic bombing of August 6, 1945. Whether a nuclear weapon might again be used by one nation against another is a question that has haunted the world for nearly ...