ML Moves Towards Explorations Mission 1, Roll to the VAB

NASA's mobile launcher atop crawler-transporter 2 begins its trek off of Launch Pad 39B on Sept. 7, 2018, at NASA's Kennedy Space Center in Florida. After undergoing a fit check and several days of systems testing with the pad, the mobile launcher is on its way to the Vehicle Assembly Building. This is the first time that the modified mobile launcher made the trip to the pad. The 380-foot-tall mobile launcher is equipped with the crew access arm and several umbilicals that will provide power, environmental control. Pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.