The Latest Breaking News from Stanislav Petrov

Check out these historical butterfly effects, from who caused the First World War to theories about what caused the fall of the Berlin Wall, Brexit, the rise of Lego, and beyond.

Sometimes a decision made in the blink of an eye can even change the course of history.

As military strategists in the West war-game a possible nuclear escalation by Russian President Vladimir Putin, they’re also pondering the role disobedience could play. What if Putin gives the order to nuke, but others in the chain of command refuse to execute? Should the U.S. and its allies try to…

In “Emotional,” science writer Leonard Mlodinow explores our feelings’ ability to spur intelligent, nuanced action