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 ...

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. “As of today, the ...

President Trump explained the order by saying other, unnamed nations were testing their own nuclear weapons, even though no country has tested since 2017. By David E. Sanger and William J. Broad David ...

The United States openly tracks thousands of nuclear warheads, yet a small number have slipped permanently out of reach. Yes, the US has lost 6 nuclear weapons, and each disappearance left a trail of ...

It was at an 18th century Georgian manor house outside London that Japanese lawmaker Rui Matsukawa began to have serious doubts about America’s commitment to defending her country. Matsukawa, a former ...

When it comes to nuclear weapons strategy, stability is the goal. But President Donald Trump’s back-to-back announcements about nuclear testing and nuclear submarines on Oct. 29 during his trip to ...

HIROSHIMA, Japan — Hiroshima on Wednesday marked the 80th anniversary of the U.S. atomic bombing of the western Japanese city, with many aging survivors expressing frustration about the growing ...

The Hiroshima atomic bomb, with an explosive yield of 15 kilotons, would be considered a low-yield nuclear weapon by today’s standards. The largest nuclear weapon in the US arsenal has a yield of 1.2 ...

Next week marks 80 years since the U.S. dropped atomic bombs on Japan. NPR's Scott Simon talks to Garrett Graff about his book "The Devil Reached Toward The Sky," which recounts the bomb's creation.