North Korea is the only country known to have conducted a nuclear explosive test in the 21st century.

In 1956, American nuclear weapons scientists conducted an experimental detonation during Operation Redwing that produced a ...

On October 30, 1961, the USSR detonated a 50-megaton hydrogen bomb over Novaya Zemlya. The explosion remained unparalleled in ...

The experiment was focused on improving capabilities to detect a "decoupled" explosion.

The US has conducted more nuclear weapons tests than any other nation in history. The official count of 1,054 tests includes 210 atmospheric nuclear tests between 1945 and 1962 - with cameras ...

We don't always get to pinpoint the exact moment the world changes. But when the New Mexico dawn was torn open at 5:29 am on 16 July 1945, it was, without a doubt, a pivotal moment in humanity's ...