The engine service platform that will provide access to the core stage of the Space Launch System (SLS) rocket is moved beneath the mobile launcher (ML) in High Bay 3 of the Vehicle Assembly Building at NASAs Kennedy Space Center in Florida on June 14, 2019. The large work platform is designed to provide unrestricted access to the RS-25 engines on the SLS core stage from the ML. The service platform will be used for Artemis 1 and subsequent missions. For Artemis 1, the Orion spacecraft will launch atop the SLS rocket from Launch Pad 39B and begin an approximately three-week mission that will send Orion thousands of miles beyond the Moon. Exploration Ground Systems is overseeing work on the ML.