United Launch Alliance's Vulcan Centaur lifted off for the third time ever in an experimental launch to put navigation ...

ULA's Vulcan is replacing the company's workhorse Atlas 5 rocket and the already-retired Delta 4 family of launchers.

About 100 Guard members arrived at the D.C. Armory Tuesday morning to fill out paperwork as part of their in-processing. When ...

The White House is ordering a review of the Smithsonian museums to align content with President Donald Trump's interpretation ...