Bruce Murray Space Image Library

EM-1 aft liquid oxygen tank dome

EM-1 aft liquid oxygen tank dome
EM-1 aft liquid oxygen tank dome The aft liquid oxygen tank dome for the Space Launch System's inaugural flight, Exploration Mission 1, is assembled in the Gore Weld Tool at NASA's Michoud Assembly Facility. Dome panels (left) are built by an outside vendor and shipped to the plant, where they are assembled using vertical friction stir welds. Jason Davis / The Planetary Society