NASA Administrator Charles Bolden unveiled the world's largest welder on Friday at NASA's Michoud Assembly Facility in New Orleans.
The 170-foot-tall welder will be used to construct NASA's Space Launch System (SLS) rocket, which will be the world's most powerful rocket. The welder will assemble the pieces of the SLS's core stage, which includes putting together domes, rings, and barrels. The core stage will store cryogenic liquid hydrogen and liquid oxygen for the rocket's missions.
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