According to the U.S. Air Force Rapid Capabilities Office, the next X-37B flight will test an experimental propulsion system jointly developed by the Air Force Research Laboratory and Space and Missile Systems Center.
![]()
By US Air Force [Public domain], via Wikimedia Commons
Continue reading “Upcoming X-37B flight will test experimental propulsion system”

![11083796_886736644706297_4918460128361954084_o[1]](http://alert5.com/wp-content/uploads/2015/04/11083796_886736644706297_4918460128361954084_o1-500x333.jpg)