The #NASASLS core stage is being built at #NASAMichoud in New Orleans using state-of-the-art manufacturing equipment, including a friction-stir-welding tool that is the largest of its kind in the world.

LEARN MORE about #NASASLS here. >> https://t.co/vqq92bs10O pic.twitter.com/wEHJopIPaN

— NASA_SLS (@NASA_SLS) June 20, 2018