NASA Brings Back the X-Plane, and This One's Electric

While NASA has had a long and storied history of building and testing experimental aircraft - called X-planes -- it has been almost a decade since the space agency has developed any new aircraft. But an initiative announced earlier this year as part of the new budget has NASA back designing, building and flying a new series of X-planes, with the goal of creating more "green" aviation technologies that can then be utilized by the aeronautics industry. NASA unveiled the first plane in the new X se...