This resource reel shows major milestones for NASA’s Moon rocket, the Space Launch System (SLS) as it prepared its first flight on the Artemis I mission. Video highlights the SLS roll out to Launch Complex 39B at NASA’s Kennedy Space Center in Florida, stacking of the major rocket parts inside Kennedy’s Vehicle Assembly Building, Green Run core stage testing, and testing at NASA’s Marshall Space Flight Center in Huntsville, Alabama. Also included is video showing the System Integration Lab at Marshall where the flight software and avionics systems are tested and the Space Launch System (SLS) Engineering Support Center where many Marshall engineers work during the launch. NASA’s Artemis I mission is the first integrated test of the agency’s deep space exploration systems: the SLS rocket, the Orion spacecraft, and supporting ground systems. For more information about SLS, visit nasa.gov/sls.