Why the Soviets built such a massive bomb to begin with, and how it became one of the cleanest nuclear bombs ever detonated, why the inventor of the largest nuclear bomb received a peace prize from ...

The Tsar Bomba wasn’t just a bomb—it was a message. In 1961, the Soviet Union detonated the largest nuclear weapon ever built ...

Australian online safety tsar ‘censoring free speech’, says US House committee report claims Julie Inman-Grant launched ‘aggressive regulatory campaign’ against X ...

The US president also reiterates his claim that Iran's nuclear facilities have been "obliterated".

A young Syrian national is suspected of supporting a foreign terror group over a foiled plot in Vienna last August.