The United States is to resume nuclear weapons testing “immediately”, Donald Trump has announced, raising fears of renewed proliferation between the world’s two biggest stockpiles of atomic weaponry.

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 ...

This is read by an automated voice. Please report any issues or inconsistencies here. Trump says U.S. will restart nuclear testing, reversing decades of policy since the last test in 1992. Russia, ...

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 ...

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 ...

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 ...

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 ...

President Donald Trump on Wednesday said he had directed the Pentagon to begin testing nuclear weapons “on an equal basis” with Russia and China, triggering uncertainty over the decades-old U.S.

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...

The U.S. altered the course of history 80 years ago when it dropped the atomic bomb on Japan. It was an audacious move that ultimately led to the end of World War II. The motivation and secrecy ...