Global Hawk UAV-to-UAV Refueling DemonstrationNASA Global Hawk No. 871 sported a long refueling probe prior to a checkout flight in restricted airspace near Edwards Air Force Base, CA.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/global-hawk-uav-uav-refueling-demonstration-6/Copy URL to clipboard> DownloadShareSize1041x694px