https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987406Edit ImageSaveSaveEditCropCustom TextAstronomy: an astronomer in his study, looking out of the window with a telescope. Engraving by C. Grignion after S. Wale.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 995 px | 300 dpiLarge JPEG 2436 x 2020 px | 300 dpiFree DownloadAstronomy: an astronomer in his study, looking out of the window with a telescope. Engraving by C. Grignion after S. Wale.More