Browsing: Space Plane

The Boeing X-37B, a highly classified robotic spacecraft built for the US Air Force, is to make its third landing…

The secretive U.S. Air Force X-37B robotic space plane has been cleared to lift off Tuesday (Dec. 11).

As the next secretive flight of the U.S. Air Force’s robotic X-37B mini-shuttle draws closer, analysts are keeping a close…