unmanned spaceplane

Northrop Grumman seeks to introduce its reusable unmanned spaceplane prototype to the commercial satellite launch market even as the company works on its design for the Defense Advanced Research Projects Agency Experimental Spaceplane-1 program, Flightglobal reported Thursday. James Drew writes that Doug Young, vice president of space systems resiliency at Northrop, told Flightglobal the company plans to continue developing its XS-1 concept […] More