https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/440536Edit ImageSaveSaveEditCropCustom TextThe north polar residual ice cap, which is cut by spiral-patterned troughs, is located at the top in this view from NASA's Viking Orbiter 1. Original from NASA . Digitally enhanced by rawpixel.MorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSocial Media JPEG 1080 x 1080 px | 300 dpiInstagram Post JPEG 1080 x 1080 px | 300 dpiFacebook Post JPEG 1080 x 1080 px | 300 dpiLarge JPEG 3500 x 3500 px | 300 dpiBest Quality JPEG 7133 x 7133 px | 300 dpiSocial Media TIFF 1080 x 1080 px | 300 dpiInstagram Post TIFF 1080 x 1080 px | 300 dpiFacebook Post TIFF 1080 x 1080 px | 300 dpiBest Quality TIFF 7133 x 7133 px | 300 dpi | 291.16 MBFree DownloadThe north polar residual ice cap, which is cut by spiral-patterned troughs, is located at the top in this view from NASA's Viking Orbiter 1. Original from NASA . Digitally enhanced by rawpixel.More