Chill Test, Warm SuccessNASA engineers at Stennis Space Center near Bay St. Louis, Miss., took a major step Dec. 11 towards hotfire testing of RS-25 rocket engines that will help power the new Space Launch System (SLS) on missions to deep-space destinations.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/chill-test-warm-success/Copy URL to clipboard> DownloadShareSize1041x586px