Bill Nelson @SenBillNelson
Teams at @NASAKennedy are hard at work assembling @NASA_SLS for its first trip around the Moon. SLS is the most powerful rocket NASA has ever built. Check out this 360-degree look at the core stage as its lowered onto the mobile launcher between the twin solid rocket boosters! https://t.co/SZDYzWCiSN — PolitiTweet.org