NEW ROCKET LABORATORYThe Rocket Engine Test Facility (RETF) in the final stages of construction (4/26/1957).Image Credit: NASA/PAUL RIEDEL Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/grc-1957-c-44838/Copy URL to clipboard> DownloadShareImage CreditNASA/PAUL RIEDELSize2756x2194px
