Global Hawk UAV-to-UAV Refueling DemonstrationSoaring above California's Mojave Desert, NASA Global Hawk No. 871 sported a refueling probe in a checkout flight prior to participation in an unmanned aerial refueling demonstration.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/global-hawk-uav-uav-refueling-demonstration-4/Copy URL to clipboard> DownloadShareSize1041x1562px