A vibrant retro sci-fi scene unfolds on an asteroid, where a 1950s-style diner gleams under the cosmic sky, its neon lights casting dynamic, colorful reflections across the rocky terrain. Flying cars zip past, their sleek designs reminiscent of classic vintage models, yet futuristic in their aerodynamic shapes. The asteroid diner, a beacon of nostalgia amidst the vastness of space, features chrome accents and large windows revealing patrons enjoying milkshakes while gazing at the stars. Intricate details abound, from the textured surface of the asteroid to the radiant auroras that dance across the inky expanse, all rendered in stunning 4k resolution, creating a dazzling tableau of retro-futurism.