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

Prime Minister Benjamin Netanyahu said on Monday that Israel's military campaign against Iran had prevented Tehran from acquiring nuclear weapons in the near term and averted an existential threat to ...

When Iran’s covert nuclear program came to international attention over two decades ago, Tehran insisted that its intentions were peaceful and that it had no plans to develop weapons. The country’s ...

Confusion on whether Iran truly needed only “two weeks to four weeks” to make a nuclear weapon, as President Donald Trump suggested on Monday, hangs over the ongoing U.S. and Israeli war on the ...

When a nuclear accident happens, it’s vital that scientists have accurate fallout models.

Space-based nuclear weapons are a serious matter, and one that deserves the very highest level of national attention.

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 ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A nuclear bomb map created using a simulation tool shows the ...

The fate of Iran’s enriched uranium stays unresolved, pushed into a sixty day negotiation that can be extended by mutual ...

It was supposed to be a routine exercise. Perhaps an odd phrase to use when describing the handling of nuclear weapons, but during the Vietnam War, it was standard procedure to regularly load and ...