A vibrant retro sci-fi scene featuring a 1950s-style diner perched on an asteroid, surrounded by a bustling array of sleek flying cars zipping through the starlit sky. The diner's neon lights cast dynamic, kaleidoscopic hues across the asteroid's surface, contrasting with the celestial backdrop of twinkling stars and swirling cosmic dust. Intricate details adorn the scene, from classic chrome finishes on the cars to the diner's retro-futuristic architectural design. Rich, colorful lights dance across the landscape, creating a lively atmosphere that blends nostalgia with the boundless energy of space, all captured in stunning 4K clarity.