An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.

A significant issue may have stemmed from the military Blackhawk helicopter involved in the collision - the lack of the Traffic Collision Avoidance System (TCAS) in military helicopters.

Local officials and experts said the water the U.S. Army Corps of Engineers began sending downstream on Friday could have ...

According to the Times on Friday, the U.S. Army Corps of Engineers had then been directed to dramatically increase the flow ...

The U.S. Army Corps of Engineers (USACE) released a timeline Saturday for removing the American Airlines plane and Army Black Hawk helicopter from the Potomac River after the two collided near Reagan ...

Conditions of the Potomac River Saturday have improved as officials recover the remains of people who died in the collision.

President Trump's executive order to send more water to Southern California is responsible for increased water flows on two ...

There were 64 passengers aboard the plane, and three Army soldiers in the helicopter, according to officials. Here's a look ...

American Legion Post 15 in Sioux Fall is hosting a Four Chaplains Remembrance Service. It’s in honor of four chaplains who ...

Across the county, families, friends and communities are remembering the lives lost in Wednesday night's plane collision in ...

A major blow to the immigrants’ dreams came on January 20, when President Trump signed an executive order ending birthright ...

Kelvin waves have been a mystery for decades but a new method involving superfluid helium-4 can help us control them.