NASA Image Plugging Away Inside Massive SLS Fuel Tank: Welders Complete Final Plug Fu

[Bok]

Welders inside a large liquid hydrogen tank for NASA's Space Launch System at the Michoud Assembly Facility in New Orleans are plugging holes left after the tank was assembled.

More... (http://www.nasa.gov/centers/marshall/michoud/welders-complete-sls-liquid-hydrogen-tank)