Responders are working to recover the victims of Wednesday night's midair collision over Washington, D.C. It could be the deadliest crash to occur in U.S. airspace in at least 15 years.

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

Costco is raising pay for most workers as 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 already hampering research.

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