A sober look at nuclear conflict, megadeath scale, targets, blast effects, fallout, and why survival depends on distance, ...

Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

For Ukraine, regaining control of the plant is not just about undoing an illegal seizure. It is central to the country’s ...

Undeclared nuclear reactor components bound for North Korea were allegedly aboard the Ursa Major when it sank off Spain in ...