![Masten Xephyr](http://www.newspacejournal.com/wp-content/uploads/2014/07/masten-xs1-148x150.jpg)
An illustration by Masten Space Systems of its Xephyr design that was funded by DARPA for Phase 1 of the XS-1 program. (credit: Masten Space Systems)
Masten Space Systems, one of three companies to receive awards from DARPA for the Experimental Spaceplane 1 (XS-1) program, has revealed the design it proposes to develop for […]
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