* Stars are their own sources of light: Stars are massive balls of hot gas that produce their own light and heat through nuclear fusion. They are incredibly far away, but we can see them because they emit their own light.

* Sunlight is too weak at stellar distances: The Sun's light weakens significantly as it travels through space. By the time it reaches other stars, it is far too weak to be reflected back to Earth.

* Reflection requires a surface: Stars are made of gas, not solid surfaces. While some stars have planets orbiting them, the planets are too small and distant to reflect enough sunlight back to Earth.

In summary: Stars are self-luminous objects, and the Sun's light is too weak and distant to be reflected by them.