EC99-45161-1Helios Prototype on lakebed prior to first battery-powered flightImage Credit: NASA Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/amf-ec99-45161-1/Copy URL to clipboard> DownloadShareTakenSeptember 8, 1999ProducerAFRCImage CreditNASASize1920x1520pxPIA NumberEC99-45161-1
