A vibrant retro sci-fi scene unfolds on an asteroid, where a classic 1950s-style diner, adorned with neon signs and chrome trimmings, sits under the swirling cosmos. Flying cars zip around in a mesmerizing ballet, casting dynamic beams of multicolored light that dance across the asteroid's rugged surface. The night sky is a canvas of twinkling stars and distant galaxies, creating a backdrop that is both infinite and intimate. Inside the diner, lively patrons in vintage futuristic attire savor milkshakes and burgers under radiant, multi-hued lights, their reflections shimmering in the large, curved glass windows. The asteroid’s surface is intricately detailed, with metallic platforms and lush alien flora adding depth to the scene, creating a dazzling, 4K realm where past and future merge seamlessly in vivid color.