Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

During the Cold War the U.S. considered putting nuclear weapons on balloons and letting them float into enemy territory for a strike.

During the Cold War, the US Air Force studied a classified lenticular spacecraft designed to orbit Earth and deliver nuclear ...

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the ...

Japan doesn’t seem likely to develop nuclear weapons in the short-term. However, the tensions that triggered this episode are ...

Russia's Project 09851 submarine Khabarovsk, designed to deploy the Poseidon nuclear torpedo, may begin sea trials in 2026.

A Princeton University simulation shows how a single low-yield nuclear weapon could rapidly spiral into a full-scale ...

President Donald Trump's comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to the bomb, but come as Washington's ...

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 ...

How much will it cost to modernize the land leg of America’s nuclear arsenal?

Secretary of War Pete Hegseth’s recent announcement that the U.S. will resume testing nuclear weapons has alarmed some nuclear-arms experts. It shouldn’t. President Trump had already announced earlier ...

On May 2, 2011, a US Navy SEAL helicopter soft-crashed into the side of Osama bin Laden’s compound in Abbottabad, Pakistan. Within the hour, bin Laden was identified and assassinated. The world’s most ...