ALBUQUERQUE, N.M. (WHAT THE TECH?) — Mysterious drones in the U.S. have pushed Flightradar24 to near the top of the smartphone app charts. In fact, authorities are using the app to help investigate ...

Starstruck locals scrambled to snap a Royal Air Force "radar jet" flying over the skies of Birmingham Airport this week. And it wasn't the only unusual plane spotted above Birmingham skies recently.

TOULOUSE, France — The downing of Malaysia Air Flight 17 over Ukraine has thrust a plane-tracking application into the limelight as more people study global flight paths that previously only drew ...