futuristic space station 3d model

Hard sci-fi interstellar forest transport vessel, elongated spacecraft, strong longitudinal axis. Two gigantic crescent-shaped structural arms are the main body of the ship, facing each other and running parallel to the ship's length. Between them floats a massive perfectly spherical biosphere containing a forest ecosystem, suspended without touching the surrounding structure. The sphere is held by invisible magnetic systems. A streamlined command module is located at the front of the vessel, integrated into the central axis. Large propulsion block and main engines at the rear. Upper and lower structural beams connect the front command section to the rear engine section, passing above and below the central sphere. Symmetrical design, realistic engineering, believable mass distribution, functional spacecraft architecture, clean silhouette, minimal greebles, industrial hard-surface design, white and dark metallic materials, large scale, NASA-inspired realism, no wings, no weapons, no fig