* The Earth is transparent to light. The atmosphere, while it scatters some light, doesn't block all of it. The light from distant stars can penetrate through it and reach your eyes.

* Stars are incredibly bright. Even though they're far away, stars emit a tremendous amount of light.

* Our eyes are sensitive to faint light. Your eyes are designed to pick up even low levels of light, allowing you to see the faint glimmer of stars.

However, there are factors that can affect how many stars you see:

* Light pollution: Artificial lights from cities and towns can overwhelm the faint light from stars, making it difficult to see them.

* Weather: Clouds block starlight, and even a hazy sky can reduce visibility.

* Time of night: The best time to see stars is on a clear night, far from city lights, when the moon is not full and the sky is dark.

* Your location: If you live in a city, you'll see fewer stars than someone living in a rural area.

So, the next time you look up at the night sky, remember that you're seeing the light from distant stars, reaching you after traveling for millions, or even billions, of years!