Article for another test today!By Philip Sloss:https://www.nasaspaceflight.com/2017/08/rs-25-another-controller-test-sls/
Live:https://www.facebook.com/NASAStennis/videos/vb.134512156591701/1477065665669670/?type=3&theater
Another test today:https://twitter.com/NASA_Marshall/status/902946559385534464