These are the booster fuel tanks for the Orbital Flight Test of the #AtlasV #Starliner in August. The booster is now in final assembly, and the OFT Centaur has completed pressure testing. #LaunchAmerica @BoeingDefense https://t.co/VkGxCLX7Ap pic.twitter.com/mAAddwYt94

— ULA (@ulalaunch) January 4, 2018