NASA (Source)Public Domainhttps://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/440599SaveSaveSTS-131 NASA & Walter Reed Hospital Tissue Growth Experiments - Flight Preps. Original from NASA . Digitally enhanced by rawpixel.MorePublic DomainFree U.S. Government ImageInfoView LicenseJPEGTIFFSmall JPEG 1200 x 773 px | 300 dpiLarge JPEG 2292 x 1476 px | 300 dpiTIFF 2292 x 1476 px | 300 dpi | 19.4 MBSay thanks by supporting these good causesHope for Children SaveDownloadSTS-131 NASA & Walter Reed Hospital Tissue Growth Experiments - Flight Preps. Original from NASA . Digitally enhanced by rawpixel.More