ALEXANDRIA, Va. (AP) — The Trump administration told a federal judge Thursday that a Georgetown University scholar’s lawsuit ...

Halley’s comet swings near Earth every 75 years. But debris left by the comet leads to two major meteor showers every year ...

The Army is planning a sweeping transformation that will merge or close headquarters, dump outdated vehicles and aircraft, slash as many as 1,000 headquarters staff in the Pentagon and shift personnel ...