Midair collisions throughout aviation history have brought some of the worst tragedies in the sky. But they've also left important lessons.

Clues emerging from the moments before an Army helicopter collided with a passenger jet suggest breakdowns in the system ...

A midair collision between an Army helicopter and an American Airlines flight from Kansas killed all 67 people aboard the two ...

The mid-air collision between a passenger jet and a military helicopter near Washington has left many searching for answers. To break down the crash, Geoff Bennett spoke with aviation correspondent ...

Air Florida Flight 90 crashed into the 14th Street Bridge over the Potomac River. 78 passengers, cabin crew members and ...

American Airlines jet with 60 passengers aboard has collided with an Army helicopter while landing at Ronald Reagan National ...