The carnival planet is a place of endless celebration, with bright lights and festive music filling the air at all times. The planet itself is a giant, colorful carnival float, constantly moving through space and attracting visitors from across the galaxy. The city at its center is a glittering metropolis of neon and chrome, with towering buildings and bustling streets. The smoke that rises from the planet is a rainbow of colors, adding to the surreal, otherworldly atmosphere.