With thousands of nuclear weapons on high alert, the greatest risk may not be intent but accident, as history shows how easily errors, false alarms, and misjudgments can spiral into catastrophe.

This month, the Bulletin of the Atomic Scientists at the University of Chicago is scheduled to announce whether the hands of ...

America's 450 nuclear missile silos exist, at least in part, to be destroyed in a nuclear attack. USA TODAY breaks down the ...

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.

A subsurface atomic test near Yucca Flats, Nev., in March 1955. (U.S. Atomic Energy Commission via AP) In what would be a major shift in a decades-old American policy against global nuclear ...

"We've halted many years ago, but with others doing testing I think it's appropriate to do so," the president told reporters aboard Air Force One. Experts say that the resumption of testing would be a ...

For the first time since the end of the Cold War, nuclear arsenals are growing, and the weapons themselves are becoming more ...

Aerial view of Hiroshima, Japan, after atomic bombing of August 6, 1945. Whether a nuclear weapon might again be used by one nation against another is a question that has haunted the world for nearly ...

Two Chinese think tanks on Thursday jointly released a research report on Japan's nuclear capabilities amid Japanese ...

The report, Nuclear Ambitions of Japan's Right-Wing Forces: A Serious Threat to World Peace, said other nations must "thwart ...