ARTICLE: SLS Mobile Launcher set for a test rollout to 39B in August - https://t.co/uRA63V4sod pic.twitter.com/y8GK3Ntpt6— Chris Bergin - NSF (@NASASpaceflight) June 18, 2018
ARTICLE: SLS Mobile Launcher set for a test rollout to 39B in August - https://t.co/uRA63V4sod pic.twitter.com/y8GK3Ntpt6