The nation conducted its last explosive nuclear test in 1992, after a series of treaties limited testing capabilities.

Stepping back into the desert of Washington state, we follow how the Hanford Site was built at breakneck speed to feed the ...

ALBUQUERQUE, N.M. — Transported in the backseat of a blacked-out Plymouth sedan was the culmination of years of feverish work — a hefty plutonium core that would soon be used to trigger the world’s ...

In the shadow of a federal government shutdown, the site where the first atomic bomb was tested will not be open to the public this year. Located on White Sands Missile Range, the Trinity Site is ...

Trump’s command risks a global arms race while the Doomsday clock ticks closer than ever to midnight, experts say ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

Donald Trump has repeatedly called the proliferation of nuclear weapons “the n-word,” his way of warning that speaking “nuclear” into existence puts the world on the path of mutually assured ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...

The U.S. and Russia have both recently threatened to resume nuclear testing, alarming the international community and ...