The United States Space Force has been testing its top-secret Boeing X-37B space plane for over a decade. Two versions of the ...

SpaceX has secured a contract to launch the uncrewed X-37B spaceplane, a secret military spacecraft created by the U.S. Air Force that's kind of like a compact space shuttle, but whose functional ...

-America’s X-37B space plane looks like a scaled-down shuttle, but it has become one of the most consequential military programs of the post-Cold War era. -Born as a NASA technology demonstrator and ...

That lack of transparency has left space experts and trackers piecing together clues from satellite data, amateur ...