https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/9975391Edit ImageSaveSaveEditCropCustom TextInterior of a Bernal sphere with glider. NASA ID number AC76-0628.Original public domain image from Wikimedia CommonsMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 886 px | 300 dpiLarge JPEG 1886 x 1393 px | 300 dpiFree DownloadInterior of a Bernal sphere with glider. NASA ID number AC76-0628.More