Here's why:

* Stars are giant balls of hot gas. They produce their own light and heat through nuclear fusion.

* They are incredibly far away. The closest star to our Sun is about 4.24 light-years away.

* Holes in the sky would be dark. They wouldn't emit light like stars do.

The idea of stars being holes in the sky is a common misconception that likely comes from the way stars look in the night sky. They appear as tiny points of light, which can make them seem like pinpricks in a dark canvas.