During a media tour of the Rotation, Processing and Surge Facility (RPSF) at NASA’s Kennedy Space Center in Florida, two cranes are used to lift one of two pathfinders, or test versions, of solid rocket booster segments for NASA’s Space Launch System rocket. At far right, the first pathfinder booster has been lifted into the vertical position and secured on a test stand. The Ground Systems Development and Operations Program and Jacobs Engineering, on the Test and Operations Support Contract, will prepare the booster segments, which are inert, for a series of lifts, moves and stacking operations to prepare for Exploration Mission-1, deep-space missions and the journey to Mars.