https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13959935Edit ImageSaveSaveEditCropCustom TextAstronomy: the Aurora Borealis, with pine trees in the foreground. Colour process print after by M. Raebel, 1909.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 817 x 1200 px | 300 dpiLarge JPEG 2243 x 3296 px | 300 dpiFree DownloadAstronomy: the Aurora Borealis, with pine trees in the foreground. Colour process print after by M. Raebel, 1909.More