Thomas Mulligan investigates the Cold War's most audacious lunar project, detailing the classified military proposal to ...

In 1962, at the height of the Cold War, the United States launched a nuclear weapon high above the Earth and detonated it in ...

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

The most frightening possibility in the ongoing Iran war is not simply that the United States could deepen its involvement. It is that a US president whose own decisions helped create the crisis could ...

Editor’s note: This article is is intended to be read alongside “Nonproliferation and strategic stability as US extended nuclear deterrence erodes.” As one component of US extended nuclear deterrence ...

Iran and the United States say they have reached a deal to end their war, which is expected to pave the way for talks ​on ...