If an asteroid was ever threatening Earth, the best way to stop it might be with a nuclear explosion, according to a new ...

Editor’s note: This is part of the “Nuclear winter: Why study it now?” series. Earth scientists Brian Toon and Alan Robock discuss their latest book on nuclear winter, “Earth in Flames” (Oxford ...

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

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 ...

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 ...