Capture a stunning macro photograph of a tiny robotic astronaut exploring the vast expanse of space, surrounded by colorful galaxies and celestial bodies.

Create a detailed illustration of a miniature, intricately designed robotic astronaut venturing through the depthless beauty of outer space. The astronaut should be in a macro perspective implying its tiny size. The background should be a spectacular display of the cosmos with various hues and clusters of stars forming distant galaxies, assorted celestial bodies such as planets, and comets scattered. Particular focus on the detail and texture of the robotic astronaut as if it were a macro photograph.