An American Airlines regional jet collided with a U.S. Army Black Hawk helicopter on Jan. 29. Both aircraft plunged into the Potomac River near Reagan Airport.

Aurora displays occur when charged particles collide with gases in the Earth's atmosphere around the magnetic poles. This ...

Midair collisions are less common than they once were because of strict regulations controlling air traffic in the U.S., enacted partially as a result of a fatal Arizona plane crash nearly 70 ...