In mid-July the Defense Advanced Research Projects Agency (DARPA) awarded contracts to Boeing, Masten Space Systems, and Northrop Grumman to develop an unmanned spaceplane to travel hypersonic speeds in the upper atmosphere--as easily as a commercial airliner.
In mid-July the Defense Advanced Research Projects Agency (DARPA) awarded contracts to Boeing, Masten Space Systems, and Northrop Grumman to develop an unmanned spaceplane to travel hypersonic speeds in the upper atmosphere--as easily as a commercial airliner.
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