Main subject: Cylindrical spacecraft flying in low Earth orbit, with silver-white aerospace metal hull, featuring details of aerospace equipment such as module structures and portholes, two neat dark blue photovoltaic solar panels deployed, and light purple propulsion jet stream ejecting from the tail. Scene: The spacecraft is in low Earth outer space, with a blue planet with an atmosphere below, and the background is deep outer space filled with tiny star points, dotted with misty gauze-like nebula patterns. Style: Realistic sci-fi aerospace illustration, faithfully restoring real features of aerospace equipment, with realistic and delicate texture, leaning towards popular science-oriented sci-fi creation style, no exaggerated fantasy design. Color tone: Overall cool tone, with base colors of deep space navy blue, the planet's light cyan-blue, the spacecraft's silver-white, and the solar panels' dark blue, supplemented by light purple of the propulsion flame and bright white halo of the atmosphere as bright accents, with transparent and clear colors. Lighting: Light source from the upper side illuminates the spacecraft hull surface, creating natural light and shadow transitions on the hull, bright contour light exists at the edge of the planet's atmosphere, deep outer space background is dark, forming a strong light and shadow contrast with the bright spacecraft and planet halo, the propulsion flame has soft self-luminous effect. Composition: Diagonal composition, the spacecraft is located in the upper middle of the frame, showing a dynamic flight posture from upper left to lower right, the planet occupies the lower half of the frame, leaving sufficient space for the background of outer space, with strong dynamic sense and clear visual priority. Purpose: Suitable as illustration materials for aerospace-themed publicity and aerospace popular science content, with sufficient tech sense and strong visual expressiveness.