The NTSB, along with the Naval Sea Systems Command Supervisor of Salvage and Diving, lifted much of the Black Hawk and other large portions of wreckage from the river Thursday. Investigators have ...

Investigators have recovered most of the airplane and helicopter from the Potomac River, but continued searching for objects on the river floor.

However, regarding species that are on the bottom of the food chain ... comes to spawn. Since the river is connected to the Arctic Ocean and to the fjord ecosystem, it provides a link between ...

Ten days after a passenger jet and a Black Hawk helicopter collided over the Potomac River near Washington ... tasked with performing a scan of the bottom of the Potomac to identify any objects ...

Especially on a river like the Zambezi in Africa. It stretches 1,599 miles (about the length of the United States from north to south), and meanders through multiple countries – ...