A vibrant, retro sci-fi scene set in space on a distant asteroid featuring a classic 1950s-style diner with neon signs glowing in vivid colors. The diner, surrounded by an array of futuristic flying cars zipping by, casts dynamic, colorful lights across the rocky landscape. Stars twinkle in the cosmic expanse, adding depth to the scene, while patrons in vintage space suits congregate inside, visible through large glass windows. Intricate details include the diner's chrome exterior reflecting the swirling colors of nearby galaxies, and the asteroid's surface dotted with parked vehicles under geometrically designed canopies. The entire image is a kaleidoscope of retro-futuristic style, capturing both the charm and wonder of past visions of the future, rendered in stunning 4K.