As the cloud cleared, Air Force bombers dropped in to gather air samples. Researchers hoped that the radioactive fallout ...

In 1962, the United States detonated a nuclear weapon in space during a Cold War experiment called Starfish Prime. The blast ...

The Soviet Union built the largest nuclear weapon ever detonated, but just before its test, engineers deliberately reduced ...

He played a key role in ending apartheid South Africa’s secret weapons program in the 1980s by helping the African National ...

Iran's intelligence ministry states that foreign countries, including Israel and the US, are trying to weaken their country ...

The regime may have been able to crush the latest wave of protests using its tried-and-tested playbook of repression. But the ...

A buzz that rocked the state all summer sent geologists on a labyrinthine chase—and unearthed new mysteries about how energy ...

The world quietly crossed a historic milestone this week: for the first time since the dawn of the nuclear era, humanity has ...

Falke served in World War II and Korea and won the Distinguished Flying Cross for aerial heroism. But he insisted his ...

Victories against once-dominant players from Japan made Nie Weiping, who died Wednesday, a national hero, and helped spark a ...

"A lot of the work that's currently being done in this field is looking at alternatives to lead for gamma protection," said Terry Thiem.