Investigators are piecing together why a passenger jet and military helicopter collided in the skies near Washington, D.C., killing all 67 on board both aircraft.

Federal authorities have restricted helicopter flights near Ronald Reagan Washington National Airport. The move comes days ...

A series of orders from the Trump administration have the potential to disrupt the delivery of life-saving medications to HIV ...

The Chinese chatbot took the world by storm and rattled stock markets. But lost in all the attention was a focus on how the ...

Winters are getting warmer and shorter as the climate changes. That's helping rat populations grow in several U.S. cities.

Responders are working to recover the victims of Wednesday night's midair collision over Washington, D.C. It could be the ...

Costco is raising pay for most workers as a Friday night deadline looms on a new contract with its unionized employees.

The National Science Foundation's funding freeze, and wider confusion about the status and future of science funding, is ...

In a contentious 3-2 vote, the Douglas City Council declared a state of emergency Wednesday night in response to executive orders from President Donald Trump related to border and immigration policies ...

President Trump renewed his threat to impose 25% tariffs on imports from Mexico and Canada as early as this weekend. The move ...

Authorities are combing the Potomac River for a second day in search of victims and more clues behind the deadliest U.S. air ...