The Night Sky Is Not Infinitely Bright

Don't some species see in the inferanc lik? Are there some species out there for which the night sky is bright? That's a great question. I should ask my biology friend aboutthat, because i don't know, not this wy. But we do know that different species are sensitive to different wave lengths of light. And so we can build telescopes that can see in the infared and can look up at the night sky in the very, very long wave lengths. If your eyeballs could see the cosmic microwave background radiation, this light from the very,very early universe plasma, plasma that filled the whole universe, then the night sky would be bright. All right? So