https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/441423Edit ImageSaveSaveEditCropCustom TextA test cell for Mechanics of Granular Materials (MGM) experiment is shown approximately 20 and 60 minutes after the start of an experiment on STS-89. Original from NASA. Digitally enhanced by rawpixel.MorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 1200 x 814 px | 300 dpiLarge JPEG 3000 x 2036 px | 300 dpiTIFF 3000 x 2036 px | 300 dpi | 34.98 MBFree DownloadA test cell for Mechanics of Granular Materials (MGM) experiment is shown approximately 20 and 60 minutes after the start of an experiment on STS-89. Original from NASA. Digitally enhanced by rawpixel.More