eli5:with billions of stars emitting photons why is the night sky not bright?

Question

eli5:with billions of stars emitting photons why is the night sky not bright?

In: 471

Answer 1

Have you ever been outside on a very clear night in an area without light pollution from a city? It’s bright enough to see pretty well. Most stars we see are incomprehensibly far away though, so the intensity of all that light is still not enough to even come close to the light of the sun (daytime). The fact you see them at all, considering how far they are, is a testament to how bright they are