The second half of the B-level work platforms, B north, for NASA's Space Launch System (SLS) rocket, is lifted up by crane in the transfer aisle of the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. The platform will be lowered into High Bay 3 and installed on the north side of the high bay. Construction workers will secure the large bolts that hold the platform in place on the north wall. The B platforms are the ninth of 10 levels of work platforms that will surround and provide access to the SLS rocket and Orion spacecraft for Exploration Mission 1. The Ground Systems Development and Operations Program is overseeing upgrades and modifications to VAB High Bay 3, including installation of the new work platforms, to prepare for NASAs Journey to Mars.