During the first six missions, the X-37B spent more than 3,774 days in orbit. It launched on its current mission, OTV-7, on ...

Work continues on the engines that might one day power the Next Generation Air Dominance fighter, though the fate of NGAD ...

The US Air Force has completed a detailed design review of two adaptive-cycle engine designs under the Next Generation ...

CEO Kelly Ortberg on Thursday said Elon Musk, the head of its space business rival SpaceX, is "helping us a lot" in ...

Donald Trump said his administration was "looking at alternatives" to Boeing following delays in delivering two new models of ...

At a time when European governments are racing to increase their military spending, the region’s most costly defense program ...