Astronaut and Alien Megastructure

15-Second Sci-Fi Cinematic
A lone astronaut stands on the edge of a colossal alien megastructure  floating above a shattered planet as a mysterious blue signal pulses  across the sky. Massive ring worlds rotate slowly in the distance while  swarms of tiny drones awaken from the darkness. The astronaut cautiously  steps forward as gravity bends around them, fragments of rock levitate,  and glowing alien glyphs illuminate beneath their boots. Suddenly, an  enormous biomechanical entity emerges from the structure, its eyes  igniting with celestial energy. 

The camera performs a slow cinematic  push-in, transitions into an orbit shot around the astronaut, then  accelerates into a dramatic wide reveal of the colossal alien machine dwarfing the landscape. 

Hyper-realistic sci-fi, ultra-detailed,  photorealistic, volumetric lighting, atmospheric fog, blue and gold  energy effects, cinematic color grading, Unreal Engine 5 quality, IMAX  composition, epic scale, smooth camera movement, shallow depth of field,  high contrast, ray-traced reflections, 16:9, masterpiece, no text, no  watermark. Negative Prompt: Low quality, blurry, noisy, low resolution, cartoon, anime,  oversaturated, flat lighting, shaky camera, jitter, flickering,  duplicated objects, distorted anatomy, extra limbs, floating artifacts,  compression artifacts, text, subtitles, watermark, logo, cropped frame,  poor composition.