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.

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

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

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

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 ...

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 ...

In the 80 years since World War II, which ended with the use of two atomic bombs, the world has maintained a tenuous relationship with nuclear weapons. Philip Potter, professor of public policy at the ...

President Donald Trump said this week that he wants the Defense Department to begin testing nuclear weapons "immediately," but experts say that's wishful thinking. The U.S. has only one location where ...

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 ...

Regional threats and doubts about the reliability of extended deterrence are pushing technically capable non-nuclear states ...