An American Airlines plane and a U.S. Army helicopter collided near Reagan National Airport and crashed into the Potomac ...

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike ...

Water is looking at more wats to track out watershed levels. An important part of that process involves devices call river system gauges. Hydrogeologists and water experts use them to monitor lake ...

An agreement between four Native American Tribes, two states, and the U.S. government unlocks investments that can restore ...