Under the guise of the Artemis programme, NASA aims to establish a permanent human presence on the Moon’s south pole.
Once completed, the SLS will be NASA’s most powerful rocket, surpassing the might of the Saturn V used during the Apollo era.
In its Block 1 configuration, the rocket will stand 332ft tall and weigh some 5.75 million lbs.
The SLS will launch its crews towards the Moon aboard an Orion capsule, catapulting the spacecraft into space at speeds of 24,500mph.
Ralph Carruth, Marshall’s test lab director, said: “The Marshall test lab team has worked closely with the Space Launch System Program to test the rocket’s structures from the top to bottom.