Create an image of a vibrant street mural depicting a surreal landscape filled with swirling galaxies, shooting stars, and floating planets, blending the worlds of street art and astronomy into a mesmerizing masterpiece.

Design an intricate street mural that exudes vibrancy. This piece should portray a surreal scene that merges the aesthetic of street art with elements from the realm of astronomy. Include details like swirling galaxies filled with various cosmic entities, shooting stars racing across the sky, and floating planets of different sizes and colors. This combination should result in a mesmerizing masterpiece that tastefully blends terrestrial creativity with celestial majesty.