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 ...

NASA's 'quiet' supersonic jet is getting ready to take off NASA is continuing development of the X-59, an experimental supersonic aircraft designed to make sonic booms quieter. The X-59 is not ...

The X-37B Holds A Novel Place In Family Tree of Reusable Spacecraft is available to both Aviation Week & Space Technology and AWIN subscribers. Our award-winning editors bring news, analysis and ...

The Northrop X-4 Bantam had a tendency to pitch nose-down at high speeds—generally not a desirable condition for a plane.

Lobster-eye satellite Einstein Probe captured the X-ray flash from a very elusive celestial pair. The discovery opens a new way to explore how massive stars interact and evolve, confirming the unique ...

Researchers have announced results from a new search at the European X-ray Free Electron Laser (European XFEL) Facility at ...

A US Air Force plane has been spotted in Moscow - it comes after President Donald Trump announced he and Vladimir Putin had ...