Guinness Recognizes X-43A World Speed RecordGuinness World Records formally recognized the NASA X-43A Hyper-X world speed record for an aircraft propelled by an air-breathing engine with this certificate and inclusion of the record into its database.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/guinness-recognizes-x-43a-world-speed-record/Copy URL to clipboard> DownloadShareSize1041x1564px