English: Platforms surround the Ares I-X in High Bay 3 of the Vehicle Assembly Building before it was moved to the launch pad. Closer in height to the hulking Saturn V moon rockets than the space shuttle, Ares I-X looks unlike any rocket that's ever stood at Launch Complex 39. But it blends familiar hardware from existing programs with newly developed components. Four first-stage, solid-fuel booster segments are derived from the Space Shuttle Program. A simulated fifth booster segment contains Atlas-V-based avionics, and the rocket's roll control system comes from the Peacekeeper missile. The launch abort system, simulated crew and service modules, upper stage, and various connecting structures all are original.