https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/3322848Edit ImageSaveSaveEditCropCustom TextAs part of a study of the consequences of re-entry of a nuclear space propulsion system into the earth's atmosphere at high velocity, experiments are being conducted on the combustion of droplets of liquid metal in air, c. 1964. Original public domain image from FlickrMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 958 px | 300 dpiLarge JPEG 3200 x 2554 px | 300 dpiFree DownloadAs part of a study of the consequences of re-entry of a nuclear space propulsion system into the earth's atmosphere at high velocity, experiments are being conducted on the combustion of droplets of liquid metal in air, c. 1964. Original public domain image from FlickrMore