Area 51

How urban explorers uncovered the site—and the memory—of a covert Cold War–era accident.

We created a flow chart to show the many paths—and potential pitfalls—to making someone’s obscure idea infamous.

Even after nine seasons, we never got tired of believing

A spy plane, an intelligence agency, and the magical logic of conspiracy theories all made an American legend.

Popular Science's editor-in-chief stars in a new National Geographic show.

Reports out of NORAD that Santa is altering this year’s route around the world raise suspicions

Black Projects, Dark Skies, Aliens and Barbeque