https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/440537Edit ImageSaveSaveEditCropCustom TextAstronomers using NASA's Spitzer Space Telescope have detected what they believe is an alien world just two-thirds the size of Earth, one of the smallest on record. Original from NASA. Digitally enhanced by rawpixel.MorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGTIFFPresentation JPEG 2560 x 1440 px | 300 dpiFacebook Cover JPEG 2560 x 1440 px | 300 dpiBlog Banner JPEG 2560 x 1440 px | 300 dpiTwitter Post JPEG 1920 x 1080 px | 300 dpiYoutube JPEG 2560 x 1440 px | 300 dpiHD JPEG 1920 x 1080 px | 300 dpi4K HD JPEG 3840 x 2160 px | 300 dpi5K HD JPEG 5120 x 2880 px | 300 dpiBest Quality JPEG 5120 x 2880 px | 300 dpiPresentation TIFF 2560 x 1440 px | 300 dpiFacebook Cover TIFF 2560 x 1440 px | 300 dpiBlog Banner TIFF 2560 x 1440 px | 300 dpiTwitter Post TIFF 1920 x 1080 px | 300 dpiYoutube TIFF 2560 x 1440 px | 300 dpiHD TIFF 1920 x 1080 px | 300 dpi4K HD TIFF 3840 x 2160 px | 300 dpi5K HD TIFF 5120 x 2880 px | 300 dpiBest Quality TIFF 5120 x 2880 px | 300 dpi | 84.4 MBFree DownloadAstronomers using NASA's Spitzer Space Telescope have detected what they believe is an alien world just two-thirds the size of Earth, one of the smallest on record. Original from NASA. Digitally enhanced by rawpixel.More