Celestial planetarium dome, gradient blue-purple twilight sky, starry night atmosphere, soft glowing nebulae, dark matter-inspired accents, iridescent aurora borealis effects, holographic displays, futuristic space exploration theme, sleek metallic surfaces, luminescent glass floors, undulating curves, immersive 360-degree viewing experience, vibrant purple-blue-green color scheme, neon-lit constellation patterns, ambient cosmic soundscape, shallow depth of field, 1/1 composition, realistic textures, subtle animations.