Regional fears of a U.S. attack on Iran have eased after President Donald Trump said Tehran had assured him that protesters ...

The blast consumed everyone near the bow. No witnesses survived to explain what triggered the detonation. A fireball erupted ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one.

Nationwide protests in Iran are putting new pressure on its theocracy as the country faces an economic crisis.

The American president’s extraordinary — and utterly exhausting — grip on the global psyche intensified on Wednesday.

Numerous pundits and opinion pieces suggested that Trump’s Venezuela raid would send a welcome signal to Russia and China: ...

Next-gen nuclear is one of our 10 Breakthrough Technologies this year. If you want to learn more about why it made the list, ...

In 1961, the Soviet Union detonated the most powerful nuclear weapon ever built. Known as Tsar Bomba, the explosion was over ...

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