Bryan Bender

Calls grow for a global planetary defense strategy as thousands of near-Earth asteroids are discovered each year.

Inside the Biden team's five-day scramble as Afghanistan collapsed.

For years, a loose group of enthusiasts—a pop singer, a real-estate magnate, a banking heir, and a terrorist interrogator—has been working to push its pet mystery into the...

An internal "training module" singles out a range of groups, ideologies and symbols seen as primary insider threats.

The effort to obstruct the Biden team is unprecedented in modern presidential transitions and will hobble the new administration on key national security matters.