MOFFETT FIELD, Calif. (NASA PR) — Assembling large structures in space is an enormous undertaking, and the International Space Station, or ISS, which is longer in length than a football field, is the prime case in point. Its construction was challenging. First, the modules, or compartments, had to be built on Earth, where engineers have access to tools for piecing together an agglomeration of parts. Then, apart from being of suitable size to fit within the rocket fairing, each module had to be structurally reinforced to withstand the violent turbulence of launch. Once in space, a tricky rendezvous-and-docking sequence was employed to join them all together.