Analyse @NASA_SLS's tweets
In this episode of Rocket Science in 60 Seconds, Chad Bryant, core stage manager for #NASASLS explains what the massive, 212-foot-tall core stage is and how its five main structures will be outfitted and joined together. WATCH >> https://t.co/LsrnHA5iK3 https://t.co/7N5Gog1xgX