This image captures the breathtaking phenomenon of light as it travels through the cosmos, embodying the physics of light propagation against the backdrop of space. Beams of light pierce the darkness, illuminating distant celestial bodies and showcasing the contrast between illuminated regions and the mysterious dark matter. It serves as a visual representation of the article’s exploration into why light can traverse the vacuum of space, highlighting the role of electromagnetic waves and the universal constant of light’s speed. Shot with a DSLR camera, the image offers a high-quality, detailed portrayal of cosmic illumination, designed to evoke a sense of wonder and curiosity about the universe.