A medical transport jet crashed in Philadelphia on Friday about 30 seconds after taking off, unleashing a fireball into the night sky and rattling residents after the second U.S. air disaster in as ...

The airspace above Reagan National Airport, where a commercial plane collided with an Army helicopter this week, has become ...

Rwandan-backed M23 rebels say they are now in control of the key eastern Congolese city of Goma. Their fighters continue to claim more territory in one of the world's most mineral-rich territories.

Research and basic information on subjects ranging from tuberculosis surveillance to adolescent health disappeared from ...

Federal authorities have restricted helicopter flights near Ronald Reagan Washington National Airport. The move comes days after a deadly collision between a passenger jet and a military helicopter.

A documentary deconstructs the true crime genre, an obsessive worms his way into a pop star's entourage, and more standouts ...

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.