This a 1:5 scale model of the support systems module of the Hubble Space Telescope. It was fabricated by the Lockheed Missile and Space Company, the contractor responsible for building the flight spacecraft. The model depicts the exterior shell of the spacecraft as well as the exterior assemblies required for its operation. Prominent features on the model include the sun shield/aperture door and the two wing-like solar arrays which flank the main tubular assembly.