Mobile Launcher Rollback to VAB

Kennedy Space Center employees lay out a path for NASA’s mobile launcher, carried atop the crawler-transporter 2, to continue its journey to the Vehicle Assembly Building (VAB) on Dec. 20, 2019. The mobile launcher returned to the VAB after spending months at the Florida spaceport’s Launch Pad 39B undergoing final validation and verification testing. Standing 380 feet tall, the mobile launcher – which will be used to assemble, process and launch the Space Launch System and Orion spacecraft – will remain inside the VAB until it is ready to return to the pad with the rocket and spacecraft on top for the “wet dress rehearsal” ahead of the Artemis I launch.