The first major piece of core stage hardware for #NASASLS has been assembled and is ready to be joined with other hardware for Exploration Mission-1, the first integrated flight of SLS and @NASA_Orion!
— NASA_SLS (@NASA_SLS) August 10, 2018
DETAILS >> https://t.co/EWnfS0pf26 pic.twitter.com/6Y0Q7B6Hb7